SEC Info  
    Home      Search      My Interests      Help      Sign In      Please Sign In

Blue Bird Corp – ‘10-K’ for 9/28/19 – ‘EX-101.CAL’

On:  Thursday, 12/12/19, at 1:40pm ET   ·   For:  9/28/19   ·   Accession #:  1589526-19-54   ·   File #:  1-36267

Previous ‘10-K’:  ‘10-K’ on 12/12/18 for 9/29/18   ·   Next:  ‘10-K/A’ on 2/5/20 for 9/28/19   ·   Latest:  ‘10-K’ on 12/11/23 for 9/30/23   ·   4 References:   

Find Words in Filings emoji
 
  in    Show  and   Hints

  As Of               Filer                 Filing    For·On·As Docs:Size

12/12/19  Blue Bird Corp                    10-K        9/28/19  116:11M

Annual Report   —   Form 10-K   —   Sect. 13 / 15(d) – SEA’34
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-K        Annual Report                                       HTML   1.05M 
 2: EX-10.8     Material Contract                                   HTML     60K 
 3: EX-10.9     Material Contract                                   HTML     52K 
 4: EX-21.1     Subsidiaries List                                   HTML     33K 
 5: EX-23.1     Consent of Experts or Counsel                       HTML     30K 
 6: EX-31.1     Certification -- §302 - SOA'02                      HTML     37K 
 7: EX-31.2     Certification -- §302 - SOA'02                      HTML     37K 
 8: EX-32.1     Certification -- §906 - SOA'02                      HTML     35K 
 9: EX-32.2     Certification -- §906 - SOA'02                      HTML     34K 
82: R1          Document and Entity Information                     HTML     64K 
21: R2          Consolidated Balance Sheets                         HTML    147K 
62: R3          Consolidated Balance Sheets (Parenthetical)         HTML     49K 
93: R4          Consolidated Statements of Operations               HTML     97K 
84: R5          Consolidated Statements of Comprehensive Income     HTML     48K 
22: R6          Consolidated Statements of Cash Flows               HTML    158K 
63: R7          Consolidated Statement of Stockholders' Deficit     HTML    107K 
96: R8          Nature of Business and Basis of Presentation        HTML     40K 
81: R9          Summary of Significant Accounting Policies          HTML    120K 
43: R10         Supplemental Financial Information                  HTML     80K 
30: R11         Inventories                                         HTML     40K 
66: R12         Property, Plant and Equipment                       HTML     51K 
104: R13         Goodwill                                            HTML     54K  
44: R14         Intangible Assets                                   HTML     71K 
31: R15         Debt                                                HTML     73K 
67: R16         Income Taxes                                        HTML    130K 
105: R17         Guarantees, Commitments and Contingencies           HTML    116K  
46: R18         Segment Information                                 HTML     85K 
29: R19         Revenue                                             HTML     51K 
90: R20         Stockholders' Deficit                               HTML     39K 
101: R21         Earnings Per Share                                  HTML     72K  
64: R22         Share-Based Compensation                            HTML     83K 
25: R23         Benefit Plans                                       HTML    168K 
91: R24         Equity Investment in Affiliate                      HTML     38K 
102: R25         Accumulated Other Comprehensive Income              HTML     70K  
65: R26         Schedule II - Valuation and Qualifying Accounts     HTML     58K 
26: R27         Summary of Significant Accounting Policies          HTML    193K 
                (Policies)                                                       
89: R28         Summary of Significant Accounting Policies          HTML     80K 
                (Tables)                                                         
103: R29         Supplemental Financial Information (Tables)         HTML     74K  
108: R30         Inventories (Tables)                                HTML     41K  
70: R31         Property, Plant and Equipment (Tables)              HTML     53K 
28: R32         Goodwill (Tables)                                   HTML     53K 
42: R33         Intangible Assets (Tables)                          HTML    102K 
107: R34         Debt (Tables)                                       HTML     52K  
69: R35         Income Taxes (Tables)                               HTML    129K 
27: R36         Guarantees, Commitments and Contingencies (Tables)  HTML    131K 
41: R37         Segment Information (Tables)                        HTML     91K 
106: R38         Revenue (Tables)                                    HTML     47K  
71: R39         Earnings Per Common Share (Tables)                  HTML     72K 
95: R40         Share Based Compensation (Tables)                   HTML     77K 
80: R41         Benefit Plans (Tables)                              HTML    161K 
24: R42         Accumulated Other Comprehensive Income (Tables)     HTML     70K 
61: R43         Nature of Business and Basis of Presentation -      HTML     39K 
                Narrative (Details)                                              
94: R44         Summary of Significant Accounting Policies -        HTML     82K 
                Narrative (Details)                                              
79: R45         Summary of Significant Accounting Policies -        HTML     45K 
                Useful Lives of Property, Plant and Equipment                    
                (Details)                                                        
23: R46         Summary of Significant Accounting Policies -        HTML     50K 
                Schedule of Previously Reported Results of                       
                Operations (Details)                                             
60: R47         Supplemental Financial Information - Accounts       HTML     39K 
                Receivable (Details)                                             
92: R48         Supplemental Financial Information - Product        HTML     38K 
                Warranty Rollforward (Details)                                   
83: R49         Supplemental Financial Information - Extended       HTML     37K 
                Warranty Income (Details)                                        
73: R50         Supplemental Financial Information - Remaining      HTML     38K 
                Performance Obligation (Details)                                 
110: R51         Supplemental Financial Information - Self           HTML     37K  
                Insurance (Details)                                              
53: R52         Supplemental Financial Information - Narrative      HTML     40K 
                (Details)                                                        
39: R53         Supplemental Financial Information - Derivative     HTML     40K 
                Instruments (Details)                                            
74: R54         Inventories (Details)                               HTML     42K 
111: R55         Property, Plant and Equipment (Details)             HTML     62K  
54: R56         Goodwill (Details)                                  HTML     43K 
40: R57         Intangible Assets (Details)                         HTML     54K 
72: R58         Intangible Assets - Narrative (Details)             HTML     43K 
112: R59         Intangible Assets Schedule of Expected              HTML     47K  
                Amortization Expense (Details)                                   
55: R60         Debt - Schedule of Long-term Debt (Details)         HTML     44K 
17: R61         Debt - Narrative (Details)                          HTML     93K 
85: R62         Debt Debt - Covenants (Details)                     HTML     54K 
97: R63         Debt - Maturity Schedule (Details)                  HTML     45K 
58: R64         Income Taxes - Income Tax (Benefit) Expense         HTML     58K 
                (Details)                                                        
20: R65         Income Taxes (Details)                              HTML     48K 
88: R66         Income Taxes - Effective Income Tax Rate            HTML     66K 
                Reconciliation (Details)                                         
100: R67         Income Taxes - Unrecognized Tax Benefits (Details)  HTML     36K  
59: R68         Income Taxes - Deferred Tax Assets and Liabilities  HTML     78K 
                (Details)                                                        
16: R69         Guarantees, Commitments and Contingencies -         HTML     78K 
                Narrative (Details)                                              
36: R70         Guarantees, Commitments and Contingencies           HTML     51K 
                Guarantees, Commitments and Contingencies -                      
                Schedule of Lease Amounts included on the                        
                Consolidated Balance Sheets (Details)                            
52: R71         Guarantees, Commitments and Contingencies -         HTML     43K 
                Schedule of Lease Costs (Details)                                
116: R72         Guarantees, Commitments and Contingencies -         HTML     88K  
                Schedule of Lease Liability Maturities (Details)                 
78: R73         Guarantees, Commitments and Contingencies - Lease   HTML     42K 
                Terms and Discount Rates (Details)                               
32: R74         Guarantees, Commitments and Contingencies -         HTML     44K 
                Supplemental Cash Flow Information (Details)                     
49: R75         Guarantees, Commitments and Contingencies -         HTML     33K 
                Purchase Commitments (Details)                                   
113: R76         Segment Information (Details)                       HTML     59K  
75: R77         Segment Information - Reconciliation of Segment     HTML     58K 
                Gross Profit (Details)                                           
38: R78         Revenue (Details)                                   HTML     57K 
48: R79         Stockholders' Deficit - (Details)                   HTML     78K 
34: R80         Earnings Per Common Share (Details)                 HTML     78K 
51: R81         Share Based Compensation - Narrative (Details)      HTML     54K 
115: R82         Share Based Compensation - Restricted Stock and     HTML     69K  
                Unit Activity (Details)                                          
77: R83         Share Based Compensation (Details)                  HTML     74K 
33: R84         Share Based Compensation - Fair Value Assumptions   HTML     49K 
                (Details)                                                        
50: R85         Benefit Plans - Narrative (Details)                 HTML     60K 
114: R86         Benefit Plans - Projected Benefit Obligation        HTML     45K  
                (Details)                                                        
76: R87         Benefit Plans - Change in Plan Assets (Details)     HTML     47K 
37: R88         Benefit Plans - Net Funded Status (Details)         HTML     44K 
47: R89         Benefit Plans - Fair Value of Plan Assets           HTML     54K 
                (Details)                                                        
56: R90         Benefit Plans - Amounts Recognized in Other         HTML     66K 
                Comprehensive Income (Details)                                   
18: R91         Benefit Plans - Assumptions Used to Determine       HTML     34K 
                Benefit Obligations (Details)                                    
86: R92         Benefit Plans - Assumptions Used to Determine Net   HTML     36K 
                Benefit Cost (Details)                                           
98: R93         Benefit Plans - Weighted Average Asset Allocations  HTML     38K 
                (Details)                                                        
57: R94         Benefit Plans - Expected Benefit Payments           HTML     45K 
                (Details)                                                        
19: R95         Equity Investment in Affiliate - Narrative          HTML     51K 
                (Details)                                                        
87: R96         Accumulated Other Comprehensive Income (Details)    HTML     59K 
99: R97         Schedule II - Valuation and Qualifying Accounts     HTML     43K 
                (Details)                                                        
109: R9999       Uncategorized Items - blbd-20190928.xml             HTML     32K  
35: XML         IDEA XML File -- Filing Summary                      XML    208K 
45: EXCEL       IDEA Workbook of Financial Reports                  XLSX    124K 
10: EX-101.INS  XBRL Instance -- blbd-20190928                       XML   3.11M 
12: EX-101.CAL  XBRL Calculations -- blbd-20190928_cal               XML    388K 
13: EX-101.DEF  XBRL Definitions -- blbd-20190928_def                XML    769K 
14: EX-101.LAB  XBRL Labels -- blbd-20190928_lab                     XML   2.18M 
15: EX-101.PRE  XBRL Presentations -- blbd-20190928_pre              XML   1.38M 
11: EX-101.SCH  XBRL Schema -- blbd-20190928                         XSD    203K 
68: ZIP         XBRL Zipped Folder -- 0001589526-19-000054-xbrl      Zip    315K 


‘EX-101.CAL’   —   XBRL Calculations — blbd-20190928_cal


This Exhibit is an XBRL XML File.


                                                                                                                                                                                
<?xml version="1.0" encoding="windows-1252"?>
<!-- XBRL Document Created with Wdesk from Workiva -->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<link:roleRef roleURI="http://www.blue-bird.com/role/AccumulatedOtherComprehensiveIncome" xlink:href="blbd-20190928.xsd#AccumulatedOtherComprehensiveIncome" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/AccumulatedOtherComprehensiveIncomeDetails" xlink:href="blbd-20190928.xsd#AccumulatedOtherComprehensiveIncomeDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/AccumulatedOtherComprehensiveIncomeTables" xlink:href="blbd-20190928.xsd#AccumulatedOtherComprehensiveIncomeTables" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/BenefitPlans" xlink:href="blbd-20190928.xsd#BenefitPlans" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/BenefitPlansAmountsRecognizedInOtherComprehensiveIncomeDetails" xlink:href="blbd-20190928.xsd#BenefitPlansAmountsRecognizedInOtherComprehensiveIncomeDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/BenefitPlansAmountsRecognizedInOtherComprehensiveIncomeDetailsCalc2" xlink:href="blbd-20190928.xsd#BenefitPlansAmountsRecognizedInOtherComprehensiveIncomeDetailsCalc2" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/BenefitPlansAssumptionsUsedToDetermineBenefitObligationsDetails" xlink:href="blbd-20190928.xsd#BenefitPlansAssumptionsUsedToDetermineBenefitObligationsDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/BenefitPlansAssumptionsUsedToDetermineNetBenefitCostDetails" xlink:href="blbd-20190928.xsd#BenefitPlansAssumptionsUsedToDetermineNetBenefitCostDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/BenefitPlansBenefitPlansAllocationOfPlanAssetsDetails" xlink:href="blbd-20190928.xsd#BenefitPlansBenefitPlansAllocationOfPlanAssetsDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/BenefitPlansChangeInPlanAssetsDetails" xlink:href="blbd-20190928.xsd#BenefitPlansChangeInPlanAssetsDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/BenefitPlansExpectedBenefitPaymentsDetails" xlink:href="blbd-20190928.xsd#BenefitPlansExpectedBenefitPaymentsDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/BenefitPlansFairValueOfPlanAssetsDetails" xlink:href="blbd-20190928.xsd#BenefitPlansFairValueOfPlanAssetsDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/BenefitPlansNarrativeDetails" xlink:href="blbd-20190928.xsd#BenefitPlansNarrativeDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/BenefitPlansNetFundedStatusDetails" xlink:href="blbd-20190928.xsd#BenefitPlansNetFundedStatusDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/BenefitPlansProjectedBenefitObligationDetails" xlink:href="blbd-20190928.xsd#BenefitPlansProjectedBenefitObligationDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/BenefitPlansTables" xlink:href="blbd-20190928.xsd#BenefitPlansTables" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/BenefitPlansWeightedAverageAssetAllocationsDetails" xlink:href="blbd-20190928.xsd#BenefitPlansWeightedAverageAssetAllocationsDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/ConsolidatedBalanceSheets" xlink:href="blbd-20190928.xsd#ConsolidatedBalanceSheets" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:href="blbd-20190928.xsd#ConsolidatedBalanceSheetsParenthetical" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/ConsolidatedStatementOfStockholdersDeficit" xlink:href="blbd-20190928.xsd#ConsolidatedStatementOfStockholdersDeficit" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/ConsolidatedStatementsOfCashFlows" xlink:href="blbd-20190928.xsd#ConsolidatedStatementsOfCashFlows" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/ConsolidatedStatementsOfCashFlowsCalc2" xlink:href="blbd-20190928.xsd#ConsolidatedStatementsOfCashFlowsCalc2" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/ConsolidatedStatementsOfComprehensiveIncome" xlink:href="blbd-20190928.xsd#ConsolidatedStatementsOfComprehensiveIncome" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/ConsolidatedStatementsOfOperations" xlink:href="blbd-20190928.xsd#ConsolidatedStatementsOfOperations" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/Debt" xlink:href="blbd-20190928.xsd#Debt" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/DebtDebtCovenantsDetails" xlink:href="blbd-20190928.xsd#DebtDebtCovenantsDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/DebtMaturityScheduleDetails" xlink:href="blbd-20190928.xsd#DebtMaturityScheduleDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/DebtNarrativeDetails" xlink:href="blbd-20190928.xsd#DebtNarrativeDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/DebtScheduleOfLongTermDebtDetails" xlink:href="blbd-20190928.xsd#DebtScheduleOfLongTermDebtDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/DebtTables" xlink:href="blbd-20190928.xsd#DebtTables" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/DocumentAndEntityInformation" xlink:href="blbd-20190928.xsd#DocumentAndEntityInformation" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/EarningsPerCommonShareDetails" xlink:href="blbd-20190928.xsd#EarningsPerCommonShareDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/EarningsPerCommonShareTables" xlink:href="blbd-20190928.xsd#EarningsPerCommonShareTables" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/EarningsPerShare" xlink:href="blbd-20190928.xsd#EarningsPerShare" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/EquityInvestmentInAffiliate" xlink:href="blbd-20190928.xsd#EquityInvestmentInAffiliate" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/EquityInvestmentInAffiliateNarrativeDetails" xlink:href="blbd-20190928.xsd#EquityInvestmentInAffiliateNarrativeDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/Goodwill" xlink:href="blbd-20190928.xsd#Goodwill" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/GoodwillDetails" xlink:href="blbd-20190928.xsd#GoodwillDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/GoodwillTables" xlink:href="blbd-20190928.xsd#GoodwillTables" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/GuaranteesCommitmentsAndContingencies" xlink:href="blbd-20190928.xsd#GuaranteesCommitmentsAndContingencies" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/GuaranteesCommitmentsAndContingenciesGuaranteesCommitmentsAndContingenciesScheduleOfLeaseAmountsIncludedOnConsolidatedBalanceSheetsDetails" xlink:href="blbd-20190928.xsd#GuaranteesCommitmentsAndContingenciesGuaranteesCommitmentsAndContingenciesScheduleOfLeaseAmountsIncludedOnConsolidatedBalanceSheetsDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/GuaranteesCommitmentsAndContingenciesLeaseTermsAndDiscountRatesDetails" xlink:href="blbd-20190928.xsd#GuaranteesCommitmentsAndContingenciesLeaseTermsAndDiscountRatesDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/GuaranteesCommitmentsAndContingenciesNarrativeDetails" xlink:href="blbd-20190928.xsd#GuaranteesCommitmentsAndContingenciesNarrativeDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/GuaranteesCommitmentsAndContingenciesPurchaseCommitmentsDetails" xlink:href="blbd-20190928.xsd#GuaranteesCommitmentsAndContingenciesPurchaseCommitmentsDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/GuaranteesCommitmentsAndContingenciesScheduleOfLeaseCostsDetails" xlink:href="blbd-20190928.xsd#GuaranteesCommitmentsAndContingenciesScheduleOfLeaseCostsDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/GuaranteesCommitmentsAndContingenciesScheduleOfLeaseLiabilityMaturitiesDetails" xlink:href="blbd-20190928.xsd#GuaranteesCommitmentsAndContingenciesScheduleOfLeaseLiabilityMaturitiesDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/GuaranteesCommitmentsAndContingenciesScheduleOfLeaseLiabilityMaturitiesDetailsCalc2" xlink:href="blbd-20190928.xsd#GuaranteesCommitmentsAndContingenciesScheduleOfLeaseLiabilityMaturitiesDetailsCalc2" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/GuaranteesCommitmentsAndContingenciesSupplementalCashFlowInformationDetails" xlink:href="blbd-20190928.xsd#GuaranteesCommitmentsAndContingenciesSupplementalCashFlowInformationDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/GuaranteesCommitmentsAndContingenciesTables" xlink:href="blbd-20190928.xsd#GuaranteesCommitmentsAndContingenciesTables" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/IncomeTaxes" xlink:href="blbd-20190928.xsd#IncomeTaxes" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" xlink:href="blbd-20190928.xsd#IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/IncomeTaxesDetails" xlink:href="blbd-20190928.xsd#IncomeTaxesDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" xlink:href="blbd-20190928.xsd#IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/IncomeTaxesIncomeTaxBenefitExpenseDetails" xlink:href="blbd-20190928.xsd#IncomeTaxesIncomeTaxBenefitExpenseDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/IncomeTaxesTables" xlink:href="blbd-20190928.xsd#IncomeTaxesTables" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails" xlink:href="blbd-20190928.xsd#IncomeTaxesUnrecognizedTaxBenefitsDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/IntangibleAssets" xlink:href="blbd-20190928.xsd#IntangibleAssets" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/IntangibleAssetsDetails" xlink:href="blbd-20190928.xsd#IntangibleAssetsDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/IntangibleAssetsNarrativeDetails" xlink:href="blbd-20190928.xsd#IntangibleAssetsNarrativeDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/IntangibleAssetsScheduleOfExpectedAmortizationExpenseDetails" xlink:href="blbd-20190928.xsd#IntangibleAssetsScheduleOfExpectedAmortizationExpenseDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/IntangibleAssetsTables" xlink:href="blbd-20190928.xsd#IntangibleAssetsTables" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/Inventories" xlink:href="blbd-20190928.xsd#Inventories" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/InventoriesDetails" xlink:href="blbd-20190928.xsd#InventoriesDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/InventoriesTables" xlink:href="blbd-20190928.xsd#InventoriesTables" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/NatureOfBusinessAndBasisOfPresentation" xlink:href="blbd-20190928.xsd#NatureOfBusinessAndBasisOfPresentation" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/NatureOfBusinessAndBasisOfPresentationNarrativeDetails" xlink:href="blbd-20190928.xsd#NatureOfBusinessAndBasisOfPresentationNarrativeDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/PropertyPlantAndEquipment" xlink:href="blbd-20190928.xsd#PropertyPlantAndEquipment" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/PropertyPlantAndEquipmentDetails" xlink:href="blbd-20190928.xsd#PropertyPlantAndEquipmentDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/PropertyPlantAndEquipmentTables" xlink:href="blbd-20190928.xsd#PropertyPlantAndEquipmentTables" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/Revenue" xlink:href="blbd-20190928.xsd#Revenue" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/RevenueDetails" xlink:href="blbd-20190928.xsd#RevenueDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/RevenueTables" xlink:href="blbd-20190928.xsd#RevenueTables" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/ScheduleIiValuationAndQualifyingAccounts" xlink:href="blbd-20190928.xsd#ScheduleIiValuationAndQualifyingAccounts" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" xlink:href="blbd-20190928.xsd#ScheduleIiValuationAndQualifyingAccountsDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/SegmentInformation" xlink:href="blbd-20190928.xsd#SegmentInformation" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/SegmentInformationDetails" xlink:href="blbd-20190928.xsd#SegmentInformationDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/SegmentInformationReconciliationOfSegmentGrossProfitDetails" xlink:href="blbd-20190928.xsd#SegmentInformationReconciliationOfSegmentGrossProfitDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/SegmentInformationTables" xlink:href="blbd-20190928.xsd#SegmentInformationTables" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/ShareBasedCompensation" xlink:href="blbd-20190928.xsd#ShareBasedCompensation" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/ShareBasedCompensationDetails" xlink:href="blbd-20190928.xsd#ShareBasedCompensationDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/ShareBasedCompensationFairValueAssumptionsDetails" xlink:href="blbd-20190928.xsd#ShareBasedCompensationFairValueAssumptionsDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/ShareBasedCompensationNarrativeDetails" xlink:href="blbd-20190928.xsd#ShareBasedCompensationNarrativeDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/ShareBasedCompensationRestrictedStockAndUnitActivityDetails" xlink:href="blbd-20190928.xsd#ShareBasedCompensationRestrictedStockAndUnitActivityDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/ShareBasedCompensationTables" xlink:href="blbd-20190928.xsd#ShareBasedCompensationTables" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/StockholdersDeficit" xlink:href="blbd-20190928.xsd#StockholdersDeficit" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/StockholdersDeficitDetails" xlink:href="blbd-20190928.xsd#StockholdersDeficitDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/SummaryOfSignificantAccountingPolicies" xlink:href="blbd-20190928.xsd#SummaryOfSignificantAccountingPolicies" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails" xlink:href="blbd-20190928.xsd#SummaryOfSignificantAccountingPoliciesNarrativeDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:href="blbd-20190928.xsd#SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfPreviouslyReportedResultsOfOperationsDetails" xlink:href="blbd-20190928.xsd#SummaryOfSignificantAccountingPoliciesScheduleOfPreviouslyReportedResultsOfOperationsDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:href="blbd-20190928.xsd#SummaryOfSignificantAccountingPoliciesTables" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/SummaryOfSignificantAccountingPoliciesUsefulLivesOfPropertyPlantAndEquipmentDetails" xlink:href="blbd-20190928.xsd#SummaryOfSignificantAccountingPoliciesUsefulLivesOfPropertyPlantAndEquipmentDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/SupplementalFinancialInformation" xlink:href="blbd-20190928.xsd#SupplementalFinancialInformation" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/SupplementalFinancialInformationAccountsReceivableDetails" xlink:href="blbd-20190928.xsd#SupplementalFinancialInformationAccountsReceivableDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/SupplementalFinancialInformationDerivativeInstrumentsDetails" xlink:href="blbd-20190928.xsd#SupplementalFinancialInformationDerivativeInstrumentsDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/SupplementalFinancialInformationExtendedWarrantyIncomeDetails" xlink:href="blbd-20190928.xsd#SupplementalFinancialInformationExtendedWarrantyIncomeDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/SupplementalFinancialInformationNarrativeDetails" xlink:href="blbd-20190928.xsd#SupplementalFinancialInformationNarrativeDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/SupplementalFinancialInformationProductWarrantyRollforwardDetails" xlink:href="blbd-20190928.xsd#SupplementalFinancialInformationProductWarrantyRollforwardDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/SupplementalFinancialInformationRemainingPerformanceObligationDetails" xlink:href="blbd-20190928.xsd#SupplementalFinancialInformationRemainingPerformanceObligationDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/SupplementalFinancialInformationSelfInsuranceDetails" xlink:href="blbd-20190928.xsd#SupplementalFinancialInformationSelfInsuranceDetails" xlink:type="simple"/>
<link:roleRef roleURI="http://www.blue-bird.com/role/SupplementalFinancialInformationTables" xlink:href="blbd-20190928.xsd#SupplementalFinancialInformationTables" xlink:type="simple"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/AccumulatedOtherComprehensiveIncome" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/AccumulatedOtherComprehensiveIncomeDetails" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_107dc47f-3e8e-936e-b56d-159a71d56806" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax_3abb3548-5c4d-f7e9-ec84-657c5af7d43a" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_107dc47f-3e8e-936e-b56d-159a71d56806" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax_3abb3548-5c4d-f7e9-ec84-657c5af7d43a" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax_19a9882d-ffc5-f60a-48da-a57a1ebf19e9" xlink:type="locator"/>
<link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent_107dc47f-3e8e-936e-b56d-159a71d56806" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax_19a9882d-ffc5-f60a-48da-a57a1ebf19e9" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/AccumulatedOtherComprehensiveIncomeTables" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/BenefitPlans" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/BenefitPlansAmountsRecognizedInOtherComprehensiveIncomeDetails" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTax" xlink:label="loc_us-gaap_AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTax_b5e1f6cc-3c19-f5fb-07ff-bafcf832192e" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax_a21d0c25-d067-9812-e027-283668283711" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTax_b5e1f6cc-3c19-f5fb-07ff-bafcf832192e" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax_a21d0c25-d067-9812-e027-283668283711" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_a10eea14-f4db-3125-d183-77bb54500e95" xlink:type="locator"/>
<link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax_a21d0c25-d067-9812-e027-283668283711" xlink:to="loc_us-gaap_NetIncomeLoss_a10eea14-f4db-3125-d183-77bb54500e95" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax_95aef994-7a6a-9ba8-df38-1ad015d6c8d2" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax_a21d0c25-d067-9812-e027-283668283711" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax_95aef994-7a6a-9ba8-df38-1ad015d6c8d2" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_f8c4af80-3396-31ad-927b-214035fcad4c" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTax_b5e1f6cc-3c19-f5fb-07ff-bafcf832192e" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_f8c4af80-3396-31ad-927b-214035fcad4c" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_cc5d4539-1440-3488-daaf-595604d399d2" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_f8c4af80-3396-31ad-927b-214035fcad4c" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_cc5d4539-1440-3488-daaf-595604d399d2" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_9eb8402e-17f1-615b-f0e0-f772c38d36ef" xlink:type="locator"/>
<link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_f8c4af80-3396-31ad-927b-214035fcad4c" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_9eb8402e-17f1-615b-f0e0-f772c38d36ef" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_238da213-7798-05e5-0178-b455f068fdf8" xlink:type="locator"/>
<link:calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_f8c4af80-3396-31ad-927b-214035fcad4c" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_238da213-7798-05e5-0178-b455f068fdf8" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/BenefitPlansAmountsRecognizedInOtherComprehensiveIncomeDetailsCalc2" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/BenefitPlansAssumptionsUsedToDetermineBenefitObligationsDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/BenefitPlansAssumptionsUsedToDetermineNetBenefitCostDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/BenefitPlansBenefitPlansAllocationOfPlanAssetsDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/BenefitPlansChangeInPlanAssetsDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/BenefitPlansExpectedBenefitPaymentsDetails" xlink:type="extended">
<link:loc xlink:href="blbd-20190928.xsd#blbd_DefinedBenefitPlanExpectedFutureBenefitPayments" xlink:label="loc_blbd_DefinedBenefitPlanExpectedFutureBenefitPayments_ac1fee0e-1e3a-29dd-d191-80b206f6a81a" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths_429eb129-c17f-441f-1e56-ffc07d73f2a7" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_DefinedBenefitPlanExpectedFutureBenefitPayments_ac1fee0e-1e3a-29dd-d191-80b206f6a81a" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths_429eb129-c17f-441f-1e56-ffc07d73f2a7" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo_51db897c-3518-ee77-5f85-d8e97d6ddfe0" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_DefinedBenefitPlanExpectedFutureBenefitPayments_ac1fee0e-1e3a-29dd-d191-80b206f6a81a" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo_51db897c-3518-ee77-5f85-d8e97d6ddfe0" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree_76b31f87-c7ba-4950-d150-9dedc09b0255" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_DefinedBenefitPlanExpectedFutureBenefitPayments_ac1fee0e-1e3a-29dd-d191-80b206f6a81a" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree_76b31f87-c7ba-4950-d150-9dedc09b0255" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour_a3749a0d-37f1-d4f5-7041-12bc385c3859" xlink:type="locator"/>
<link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_DefinedBenefitPlanExpectedFutureBenefitPayments_ac1fee0e-1e3a-29dd-d191-80b206f6a81a" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour_a3749a0d-37f1-d4f5-7041-12bc385c3859" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive_cb9367d7-29a1-2921-b488-070af81839d7" xlink:type="locator"/>
<link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_DefinedBenefitPlanExpectedFutureBenefitPayments_ac1fee0e-1e3a-29dd-d191-80b206f6a81a" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive_cb9367d7-29a1-2921-b488-070af81839d7" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter_d41cb414-9687-caef-68f0-55adce184cc8" xlink:type="locator"/>
<link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_DefinedBenefitPlanExpectedFutureBenefitPayments_ac1fee0e-1e3a-29dd-d191-80b206f6a81a" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter_d41cb414-9687-caef-68f0-55adce184cc8" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/BenefitPlansFairValueOfPlanAssetsDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/BenefitPlansNarrativeDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/BenefitPlansNetFundedStatusDetails" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanFundedStatusOfPlan" xlink:label="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlan_6756bfa8-d44d-11e3-e639-2c0d1784c09a" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanBenefitObligation" xlink:label="loc_us-gaap_DefinedBenefitPlanBenefitObligation_4a6a9edc-7d09-7c7e-e64b-45faecd35930" xlink:type="locator"/>
<link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlan_6756bfa8-d44d-11e3-e639-2c0d1784c09a" xlink:to="loc_us-gaap_DefinedBenefitPlanBenefitObligation_4a6a9edc-7d09-7c7e-e64b-45faecd35930" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DefinedBenefitPlanFairValueOfPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets_166d727c-5242-f06b-d573-7921ffbf75e2" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanFundedStatusOfPlan_6756bfa8-d44d-11e3-e639-2c0d1784c09a" xlink:to="loc_us-gaap_DefinedBenefitPlanFairValueOfPlanAssets_166d727c-5242-f06b-d573-7921ffbf75e2" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/BenefitPlansProjectedBenefitObligationDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/BenefitPlansTables" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/BenefitPlansWeightedAverageAssetAllocationsDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/ConsolidatedBalanceSheets" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_63817d40-f759-fa9c-45a5-8bbbb36ed5c9" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_2dcbbde2-9146-a0ba-7f6c-c71b481e0841" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_63817d40-f759-fa9c-45a5-8bbbb36ed5c9" xlink:to="loc_us-gaap_LiabilitiesCurrent_2dcbbde2-9146-a0ba-7f6c-c71b481e0841" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent_c2c48170-d0ff-2c37-effc-ff5f53e30dcb" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_2dcbbde2-9146-a0ba-7f6c-c71b481e0841" xlink:to="loc_us-gaap_AccountsPayableCurrent_c2c48170-d0ff-2c37-effc-ff5f53e30dcb" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProductWarrantyAccrualClassifiedCurrent" xlink:label="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_088dbad9-ab51-b723-f657-c33308ae18ab" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_2dcbbde2-9146-a0ba-7f6c-c71b481e0841" xlink:to="loc_us-gaap_ProductWarrantyAccrualClassifiedCurrent_088dbad9-ab51-b723-f657-c33308ae18ab" xlink:type="arc"/>
<link:loc xlink:href="blbd-20190928.xsd#blbd_AccruedLiabilitiesExcludingProductWarrantyAccrualCurrent" xlink:label="loc_blbd_AccruedLiabilitiesExcludingProductWarrantyAccrualCurrent_2240d203-6a5d-74f2-49c1-80b20660adbc" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_2dcbbde2-9146-a0ba-7f6c-c71b481e0841" xlink:to="loc_blbd_AccruedLiabilitiesExcludingProductWarrantyAccrualCurrent_2240d203-6a5d-74f2-49c1-80b20660adbc" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredRevenueCurrent" xlink:label="loc_us-gaap_DeferredRevenueCurrent_56ae2fbe-1d9b-2820-d3f0-88126fbd28ba" xlink:type="locator"/>
<link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_2dcbbde2-9146-a0ba-7f6c-c71b481e0841" xlink:to="loc_us-gaap_DeferredRevenueCurrent_56ae2fbe-1d9b-2820-d3f0-88126fbd28ba" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_4bcdb937-432e-7a7e-23c2-a441d7b89da5" xlink:type="locator"/>
<link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_2dcbbde2-9146-a0ba-7f6c-c71b481e0841" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_4bcdb937-432e-7a7e-23c2-a441d7b89da5" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaap_LongTermDebtCurrent_0d8925ae-714a-26e4-aa69-2d9eac65a5c6" xlink:type="locator"/>
<link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_2dcbbde2-9146-a0ba-7f6c-c71b481e0841" xlink:to="loc_us-gaap_LongTermDebtCurrent_0d8925ae-714a-26e4-aa69-2d9eac65a5c6" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinanceLeaseLiabilityCurrent" xlink:label="loc_us-gaap_FinanceLeaseLiabilityCurrent_1396153e-4fa1-90ea-08ee-fec369a9d7aa" xlink:type="locator"/>
<link:calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_2dcbbde2-9146-a0ba-7f6c-c71b481e0841" xlink:to="loc_us-gaap_FinanceLeaseLiabilityCurrent_1396153e-4fa1-90ea-08ee-fec369a9d7aa" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesNoncurrent" xlink:label="loc_us-gaap_LiabilitiesNoncurrent_f7f6a3c1-4b60-6e47-4dbc-badebe1fbd2c" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_63817d40-f759-fa9c-45a5-8bbbb36ed5c9" xlink:to="loc_us-gaap_LiabilitiesNoncurrent_f7f6a3c1-4b60-6e47-4dbc-badebe1fbd2c" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_fcfc6b17-bfc5-2ebc-3fc1-751aa446a572" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_f7f6a3c1-4b60-6e47-4dbc-badebe1fbd2c" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_fcfc6b17-bfc5-2ebc-3fc1-751aa446a572" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProductWarrantyAccrualNoncurrent" xlink:label="loc_us-gaap_ProductWarrantyAccrualNoncurrent_19d56009-c249-124b-bea1-7d6e0858747a" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_f7f6a3c1-4b60-6e47-4dbc-badebe1fbd2c" xlink:to="loc_us-gaap_ProductWarrantyAccrualNoncurrent_19d56009-c249-124b-bea1-7d6e0858747a" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredRevenueNoncurrent" xlink:label="loc_us-gaap_DeferredRevenueNoncurrent_0670da6c-3e8b-2eea-6346-d6b68d7aba81" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_f7f6a3c1-4b60-6e47-4dbc-badebe1fbd2c" xlink:to="loc_us-gaap_DeferredRevenueNoncurrent_0670da6c-3e8b-2eea-6346-d6b68d7aba81" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_bba08e5f-78e8-6c25-01a4-6720051135cc" xlink:type="locator"/>
<link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_f7f6a3c1-4b60-6e47-4dbc-badebe1fbd2c" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_bba08e5f-78e8-6c25-01a4-6720051135cc" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" xlink:label="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_e69973b2-6cb8-6605-6335-92ae4455489c" xlink:type="locator"/>
<link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_f7f6a3c1-4b60-6e47-4dbc-badebe1fbd2c" xlink:to="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_e69973b2-6cb8-6605-6335-92ae4455489c" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_d3ba3006-9df7-8186-2eb2-dc5094562cfe" xlink:type="locator"/>
<link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_f7f6a3c1-4b60-6e47-4dbc-badebe1fbd2c" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_d3ba3006-9df7-8186-2eb2-dc5094562cfe" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinanceLeaseLiabilityNoncurrent" xlink:label="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_a2966f09-089c-308f-404f-2425a9943c5c" xlink:type="locator"/>
<link:calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesNoncurrent_f7f6a3c1-4b60-6e47-4dbc-badebe1fbd2c" xlink:to="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_a2966f09-089c-308f-404f-2425a9943c5c" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_6765f135-8c69-bebc-a116-d59a52a5b2f2" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_63817d40-f759-fa9c-45a5-8bbbb36ed5c9" xlink:to="loc_us-gaap_StockholdersEquity_6765f135-8c69-bebc-a116-d59a52a5b2f2" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockValueOutstanding" xlink:label="loc_us-gaap_PreferredStockValueOutstanding_84969fe3-08fd-b500-b7ad-ebd7bf4d768b" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_6765f135-8c69-bebc-a116-d59a52a5b2f2" xlink:to="loc_us-gaap_PreferredStockValueOutstanding_84969fe3-08fd-b500-b7ad-ebd7bf4d768b" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockValueOutstanding" xlink:label="loc_us-gaap_CommonStockValueOutstanding_55fda19b-3ba6-61b5-220d-6f7ed397180a" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_6765f135-8c69-bebc-a116-d59a52a5b2f2" xlink:to="loc_us-gaap_CommonStockValueOutstanding_55fda19b-3ba6-61b5-220d-6f7ed397180a" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_us-gaap_AdditionalPaidInCapital_6dca832a-861c-478d-b1a0-396533beb40d" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_6765f135-8c69-bebc-a116-d59a52a5b2f2" xlink:to="loc_us-gaap_AdditionalPaidInCapital_6dca832a-861c-478d-b1a0-396533beb40d" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_a59bc5ae-63a0-c9bc-32f7-e2bd9f32bd26" xlink:type="locator"/>
<link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_6765f135-8c69-bebc-a116-d59a52a5b2f2" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_a59bc5ae-63a0-c9bc-32f7-e2bd9f32bd26" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_798442bf-12e1-d944-3fa1-8b797b67482e" xlink:type="locator"/>
<link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_6765f135-8c69-bebc-a116-d59a52a5b2f2" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_798442bf-12e1-d944-3fa1-8b797b67482e" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="loc_us-gaap_TreasuryStockValue_70b30340-b55c-aed7-73f5-36d397294f84" xlink:type="locator"/>
<link:calculationArc order="6" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_6765f135-8c69-bebc-a116-d59a52a5b2f2" xlink:to="loc_us-gaap_TreasuryStockValue_70b30340-b55c-aed7-73f5-36d397294f84" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_96dd7052-744e-d270-4e77-67944ec39152" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_ddb0d184-2205-2a10-5b0e-faf2ccd717ae" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_96dd7052-744e-d270-4e77-67944ec39152" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_ddb0d184-2205-2a10-5b0e-faf2ccd717ae" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredIncomeTaxAssetsNet" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_6544a746-9524-1b61-e235-04d48d39f116" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_96dd7052-744e-d270-4e77-67944ec39152" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_6544a746-9524-1b61-e235-04d48d39f116" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityMethodInvestments" xlink:label="loc_us-gaap_EquityMethodInvestments_0682cfaa-83e6-dea4-d697-0d84430cc679" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_96dd7052-744e-d270-4e77-67944ec39152" xlink:to="loc_us-gaap_EquityMethodInvestments_0682cfaa-83e6-dea4-d697-0d84430cc679" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_af012273-e8ee-655c-daa2-86b96989d377" xlink:type="locator"/>
<link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_96dd7052-744e-d270-4e77-67944ec39152" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_af012273-e8ee-655c-daa2-86b96989d377" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_831ad0b9-9dba-3997-20e6-e99a19aa28db" xlink:type="locator"/>
<link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_96dd7052-744e-d270-4e77-67944ec39152" xlink:to="loc_us-gaap_Goodwill_831ad0b9-9dba-3997-20e6-e99a19aa28db" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_f37ad080-c77a-efc5-c936-389b16abc420" xlink:type="locator"/>
<link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_96dd7052-744e-d270-4e77-67944ec39152" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_f37ad080-c77a-efc5-c936-389b16abc420" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_d79dcc1c-93de-0ecd-2bd5-7c1f224c9b98" xlink:type="locator"/>
<link:calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_96dd7052-744e-d270-4e77-67944ec39152" xlink:to="loc_us-gaap_AssetsCurrent_d79dcc1c-93de-0ecd-2bd5-7c1f224c9b98" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_32f41ea9-05c6-e713-464b-586a571d1c1f" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_d79dcc1c-93de-0ecd-2bd5-7c1f224c9b98" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_32f41ea9-05c6-e713-464b-586a571d1c1f" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_928a1618-af56-709a-989c-a303706b8ca2" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_d79dcc1c-93de-0ecd-2bd5-7c1f224c9b98" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_928a1618-af56-709a-989c-a303706b8ca2" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaap_InventoryNet_66bcd79a-a1c3-c24d-b8b4-7a0ce373714b" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_d79dcc1c-93de-0ecd-2bd5-7c1f224c9b98" xlink:to="loc_us-gaap_InventoryNet_66bcd79a-a1c3-c24d-b8b4-7a0ce373714b" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherAssetsCurrent" xlink:label="loc_us-gaap_OtherAssetsCurrent_79aabdc0-b963-1fd1-4e81-8c0801b1ebca" xlink:type="locator"/>
<link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_d79dcc1c-93de-0ecd-2bd5-7c1f224c9b98" xlink:to="loc_us-gaap_OtherAssetsCurrent_79aabdc0-b963-1fd1-4e81-8c0801b1ebca" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinanceLeaseRightOfUseAsset" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAsset_b54d8caa-f4e6-5da2-d7a5-67f9fcda4cc5" xlink:type="locator"/>
<link:calculationArc order="8" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_96dd7052-744e-d270-4e77-67944ec39152" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAsset_b54d8caa-f4e6-5da2-d7a5-67f9fcda4cc5" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/ConsolidatedStatementOfStockholdersDeficit" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/ConsolidatedStatementsOfCashFlows" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_ad8f5587-cd30-97dd-9cf0-81ed4f58516c" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_ad8f5587-cd30-97dd-9cf0-81ed4f58516c" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_a10eea14-f4db-3125-d183-77bb54500e95" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:to="loc_us-gaap_NetIncomeLoss_a10eea14-f4db-3125-d183-77bb54500e95" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_41102ac6-5583-ebde-623f-0dcb87ce19b0" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_41102ac6-5583-ebde-623f-0dcb87ce19b0" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_b11c1cb0-596b-4c3d-0283-76cef67837c7" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_41102ac6-5583-ebde-623f-0dcb87ce19b0" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_b11c1cb0-596b-4c3d-0283-76cef67837c7" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaidInKindInterest" xlink:label="loc_us-gaap_PaidInKindInterest_74538844-e2fb-8444-e093-2ede9444fc66" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_41102ac6-5583-ebde-623f-0dcb87ce19b0" xlink:to="loc_us-gaap_PaidInKindInterest_74538844-e2fb-8444-e093-2ede9444fc66" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_90cbc3ab-f555-6407-b3b4-b2bfa84c9f18" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_41102ac6-5583-ebde-623f-0dcb87ce19b0" xlink:to="loc_us-gaap_ShareBasedCompensation_90cbc3ab-f555-6407-b3b4-b2bfa84c9f18" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_d01a4d5f-b660-27b4-db84-9a80227862fc" xlink:type="locator"/>
<link:calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_41102ac6-5583-ebde-623f-0dcb87ce19b0" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_d01a4d5f-b660-27b4-db84-9a80227862fc" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GainLossOnDispositionOfAssets1" xlink:label="loc_us-gaap_GainLossOnDispositionOfAssets1_d98f2ddb-80a6-3621-3b7b-a9eb2bffa58f" xlink:type="locator"/>
<link:calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_41102ac6-5583-ebde-623f-0dcb87ce19b0" xlink:to="loc_us-gaap_GainLossOnDispositionOfAssets1_d98f2ddb-80a6-3621-3b7b-a9eb2bffa58f" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_e8a9abf2-38d3-77d1-fb6b-693fef632294" xlink:type="locator"/>
<link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_41102ac6-5583-ebde-623f-0dcb87ce19b0" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_e8a9abf2-38d3-77d1-fb6b-693fef632294" xlink:type="arc"/>
<link:loc xlink:href="blbd-20190928.xsd#blbd_DefinedBenefitPlanAmortizationofDeferredGainsLosses" xlink:label="loc_blbd_DefinedBenefitPlanAmortizationofDeferredGainsLosses_754e3adf-6332-e86a-8fb5-80b20671da65" xlink:type="locator"/>
<link:calculationArc order="7" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_41102ac6-5583-ebde-623f-0dcb87ce19b0" xlink:to="loc_blbd_DefinedBenefitPlanAmortizationofDeferredGainsLosses_754e3adf-6332-e86a-8fb5-80b20671da65" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_11620bd8-431c-98f6-ac51-02db9613dc06" xlink:type="locator"/>
<link:calculationArc order="8" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_41102ac6-5583-ebde-623f-0dcb87ce19b0" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_11620bd8-431c-98f6-ac51-02db9613dc06" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ChangeInUnrealizedGainLossOnForeignCurrencyFairValueHedgingInstruments1" xlink:label="loc_us-gaap_ChangeInUnrealizedGainLossOnForeignCurrencyFairValueHedgingInstruments1_d77c289a-ce17-e4ff-e84e-1bb309d5d1a5" xlink:type="locator"/>
<link:calculationArc order="9" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_41102ac6-5583-ebde-623f-0dcb87ce19b0" xlink:to="loc_us-gaap_ChangeInUnrealizedGainLossOnForeignCurrencyFairValueHedgingInstruments1_d77c289a-ce17-e4ff-e84e-1bb309d5d1a5" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_5f96c19e-85fe-99f6-cec0-c2c9d7470ed4" xlink:type="locator"/>
<link:calculationArc order="10" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_41102ac6-5583-ebde-623f-0dcb87ce19b0" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_5f96c19e-85fe-99f6-cec0-c2c9d7470ed4" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_334f1d33-7cae-7fd2-9d83-bb387fc2f3dd" xlink:type="locator"/>
<link:calculationArc order="11" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_41102ac6-5583-ebde-623f-0dcb87ce19b0" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_334f1d33-7cae-7fd2-9d83-bb387fc2f3dd" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_d54a644c-3d3c-bcc1-da30-2f136651f90f" xlink:type="locator"/>
<link:calculationArc order="12" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_41102ac6-5583-ebde-623f-0dcb87ce19b0" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_d54a644c-3d3c-bcc1-da30-2f136651f90f" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_0a39d2ee-656d-ead5-a676-41794b4da8f4" xlink:type="locator"/>
<link:calculationArc order="13" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_41102ac6-5583-ebde-623f-0dcb87ce19b0" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_0a39d2ee-656d-ead5-a676-41794b4da8f4" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_2d76eef5-dce5-0152-632e-9bab39da698c" xlink:type="locator"/>
<link:calculationArc order="14" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_41102ac6-5583-ebde-623f-0dcb87ce19b0" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_2d76eef5-dce5-0152-632e-9bab39da698c" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital" xlink:label="loc_us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_36bbede4-6aaf-abc3-bc7f-42be029fe258" xlink:type="locator"/>
<link:calculationArc order="15" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities_41102ac6-5583-ebde-623f-0dcb87ce19b0" xlink:to="loc_us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_36bbede4-6aaf-abc3-bc7f-42be029fe258" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_28655e34-499f-b7bf-c54f-5de0990d0c65" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_ad8f5587-cd30-97dd-9cf0-81ed4f58516c" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_28655e34-499f-b7bf-c54f-5de0990d0c65" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquireProductiveAssets" xlink:label="loc_us-gaap_PaymentsToAcquireProductiveAssets_8cec699e-eb8f-7a25-49e6-e52d81fe4f5f" xlink:type="locator"/>
<link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_28655e34-499f-b7bf-c54f-5de0990d0c65" xlink:to="loc_us-gaap_PaymentsToAcquireProductiveAssets_8cec699e-eb8f-7a25-49e6-e52d81fe4f5f" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromSaleOfProductiveAssets" xlink:label="loc_us-gaap_ProceedsFromSaleOfProductiveAssets_22d4264a-c9a9-de0b-92b4-2261a21c1a6a" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_28655e34-499f-b7bf-c54f-5de0990d0c65" xlink:to="loc_us-gaap_ProceedsFromSaleOfProductiveAssets_22d4264a-c9a9-de0b-92b4-2261a21c1a6a" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d8917e24-06dd-060d-a290-e426c7895e54" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_ad8f5587-cd30-97dd-9cf0-81ed4f58516c" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d8917e24-06dd-060d-a290-e426c7895e54" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RepaymentsOfSeniorDebt" xlink:label="loc_us-gaap_RepaymentsOfSeniorDebt_eb61b3a0-a4cb-85be-c54d-f2beb42e5f50" xlink:type="locator"/>
<link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d8917e24-06dd-060d-a290-e426c7895e54" xlink:to="loc_us-gaap_RepaymentsOfSeniorDebt_eb61b3a0-a4cb-85be-c54d-f2beb42e5f50" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromIssuanceOfSeniorLongTermDebt" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfSeniorLongTermDebt_c8c43132-aa8a-b4ee-0a5f-e68cf7aa621d" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d8917e24-06dd-060d-a290-e426c7895e54" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfSeniorLongTermDebt_c8c43132-aa8a-b4ee-0a5f-e68cf7aa621d" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RepaymentsOfMediumTermNotes" xlink:label="loc_us-gaap_RepaymentsOfMediumTermNotes_365325f2-cb4b-9d57-d769-4a5672f16cd9" xlink:type="locator"/>
<link:calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d8917e24-06dd-060d-a290-e426c7895e54" xlink:to="loc_us-gaap_RepaymentsOfMediumTermNotes_365325f2-cb4b-9d57-d769-4a5672f16cd9" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RepaymentsOfLongTermCapitalLeaseObligations" xlink:label="loc_us-gaap_RepaymentsOfLongTermCapitalLeaseObligations_99289045-641b-e134-789c-dbf0b6bfb577" xlink:type="locator"/>
<link:calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d8917e24-06dd-060d-a290-e426c7895e54" xlink:to="loc_us-gaap_RepaymentsOfLongTermCapitalLeaseObligations_99289045-641b-e134-789c-dbf0b6bfb577" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_6accd1a2-f190-7888-29dd-29802af49bdc" xlink:type="locator"/>
<link:calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d8917e24-06dd-060d-a290-e426c7895e54" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_6accd1a2-f190-7888-29dd-29802af49bdc" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsOfDebtExtinguishmentCosts" xlink:label="loc_us-gaap_PaymentsOfDebtExtinguishmentCosts_204acd11-57b2-232a-d32d-d0824032cd6a" xlink:type="locator"/>
<link:calculationArc order="6" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d8917e24-06dd-060d-a290-e426c7895e54" xlink:to="loc_us-gaap_PaymentsOfDebtExtinguishmentCosts_204acd11-57b2-232a-d32d-d0824032cd6a" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock" xlink:label="loc_us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock_e1f62c75-9e28-2fe9-91b7-4f4d0aee4e0a" xlink:type="locator"/>
<link:calculationArc order="7" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d8917e24-06dd-060d-a290-e426c7895e54" xlink:to="loc_us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock_e1f62c75-9e28-2fe9-91b7-4f4d0aee4e0a" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_43305c85-41ff-3d0f-c464-dc8983363bce" xlink:type="locator"/>
<link:calculationArc order="8" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d8917e24-06dd-060d-a290-e426c7895e54" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_43305c85-41ff-3d0f-c464-dc8983363bce" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromWarrantExercises" xlink:label="loc_us-gaap_ProceedsFromWarrantExercises_29fc0ccf-d68e-39c1-8f4d-25c014f2bb16" xlink:type="locator"/>
<link:calculationArc order="9" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d8917e24-06dd-060d-a290-e426c7895e54" xlink:to="loc_us-gaap_ProceedsFromWarrantExercises_29fc0ccf-d68e-39c1-8f4d-25c014f2bb16" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsForRepurchaseOfEquity" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfEquity_429b89cb-a3ac-d01b-65b4-9aa6ee9ea1da" xlink:type="locator"/>
<link:calculationArc order="10" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d8917e24-06dd-060d-a290-e426c7895e54" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfEquity_429b89cb-a3ac-d01b-65b4-9aa6ee9ea1da" xlink:type="arc"/>
<link:loc xlink:href="blbd-20190928.xsd#blbd_RepurchaseOfCommonStockAndPreferredStock" xlink:label="loc_blbd_RepurchaseOfCommonStockAndPreferredStock_5C2065E72BC86C011778A58FF3E3F6CD" xlink:type="locator"/>
<link:calculationArc order="11" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d8917e24-06dd-060d-a290-e426c7895e54" xlink:to="loc_blbd_RepurchaseOfCommonStockAndPreferredStock_5C2065E72BC86C011778A58FF3E3F6CD" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinanceLeasePrincipalPayments" xlink:label="loc_us-gaap_FinanceLeasePrincipalPayments_ea0f6fc7-1d7c-1ece-fdb2-d83b594a3245" xlink:type="locator"/>
<link:calculationArc order="12" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_d8917e24-06dd-060d-a290-e426c7895e54" xlink:to="loc_us-gaap_FinanceLeasePrincipalPayments_ea0f6fc7-1d7c-1ece-fdb2-d83b594a3245" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/ConsolidatedStatementsOfCashFlowsCalc2" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_5357CDD8B0D0C86B6706F6FB35F54FFA_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_5357CDD8B0D0C86B6706F6FB35F54FFA_a10eea14-f4db-3125-d183-77bb54500e95" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_5357CDD8B0D0C86B6706F6FB35F54FFA_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:to="loc_us-gaap_NetIncomeLoss_5357CDD8B0D0C86B6706F6FB35F54FFA_a10eea14-f4db-3125-d183-77bb54500e95" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_5357CDD8B0D0C86B6706F6FB35F54FFA_b11c1cb0-596b-4c3d-0283-76cef67837c7" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_5357CDD8B0D0C86B6706F6FB35F54FFA_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_5357CDD8B0D0C86B6706F6FB35F54FFA_b11c1cb0-596b-4c3d-0283-76cef67837c7" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaidInKindInterest" xlink:label="loc_us-gaap_PaidInKindInterest_5357CDD8B0D0C86B6706F6FB35F54FFA_74538844-e2fb-8444-e093-2ede9444fc66" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_5357CDD8B0D0C86B6706F6FB35F54FFA_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:to="loc_us-gaap_PaidInKindInterest_5357CDD8B0D0C86B6706F6FB35F54FFA_74538844-e2fb-8444-e093-2ede9444fc66" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_5357CDD8B0D0C86B6706F6FB35F54FFA_90cbc3ab-f555-6407-b3b4-b2bfa84c9f18" xlink:type="locator"/>
<link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_5357CDD8B0D0C86B6706F6FB35F54FFA_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:to="loc_us-gaap_ShareBasedCompensation_5357CDD8B0D0C86B6706F6FB35F54FFA_90cbc3ab-f555-6407-b3b4-b2bfa84c9f18" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_5357CDD8B0D0C86B6706F6FB35F54FFA_d01a4d5f-b660-27b4-db84-9a80227862fc" xlink:type="locator"/>
<link:calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_5357CDD8B0D0C86B6706F6FB35F54FFA_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_5357CDD8B0D0C86B6706F6FB35F54FFA_d01a4d5f-b660-27b4-db84-9a80227862fc" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GainLossOnDispositionOfAssets1" xlink:label="loc_us-gaap_GainLossOnDispositionOfAssets1_5357CDD8B0D0C86B6706F6FB35F54FFA_d98f2ddb-80a6-3621-3b7b-a9eb2bffa58f" xlink:type="locator"/>
<link:calculationArc order="6" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_5357CDD8B0D0C86B6706F6FB35F54FFA_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:to="loc_us-gaap_GainLossOnDispositionOfAssets1_5357CDD8B0D0C86B6706F6FB35F54FFA_d98f2ddb-80a6-3621-3b7b-a9eb2bffa58f" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_5357CDD8B0D0C86B6706F6FB35F54FFA_e8a9abf2-38d3-77d1-fb6b-693fef632294" xlink:type="locator"/>
<link:calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_5357CDD8B0D0C86B6706F6FB35F54FFA_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_5357CDD8B0D0C86B6706F6FB35F54FFA_e8a9abf2-38d3-77d1-fb6b-693fef632294" xlink:type="arc"/>
<link:loc xlink:href="blbd-20190928.xsd#blbd_DefinedBenefitPlanAmortizationofDeferredGainsLosses" xlink:label="loc_blbd_DefinedBenefitPlanAmortizationofDeferredGainsLosses_5357CDD8B0D0C86B6706F6FB35F54FFA_754e3adf-6332-e86a-8fb5-80b20671da65" xlink:type="locator"/>
<link:calculationArc order="8" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_5357CDD8B0D0C86B6706F6FB35F54FFA_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:to="loc_blbd_DefinedBenefitPlanAmortizationofDeferredGainsLosses_5357CDD8B0D0C86B6706F6FB35F54FFA_754e3adf-6332-e86a-8fb5-80b20671da65" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_5357CDD8B0D0C86B6706F6FB35F54FFA_11620bd8-431c-98f6-ac51-02db9613dc06" xlink:type="locator"/>
<link:calculationArc order="9" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_5357CDD8B0D0C86B6706F6FB35F54FFA_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_5357CDD8B0D0C86B6706F6FB35F54FFA_11620bd8-431c-98f6-ac51-02db9613dc06" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ChangeInUnrealizedGainLossOnForeignCurrencyFairValueHedgingInstruments1" xlink:label="loc_us-gaap_ChangeInUnrealizedGainLossOnForeignCurrencyFairValueHedgingInstruments1_5357CDD8B0D0C86B6706F6FB35F54FFA_d77c289a-ce17-e4ff-e84e-1bb309d5d1a5" xlink:type="locator"/>
<link:calculationArc order="10" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_5357CDD8B0D0C86B6706F6FB35F54FFA_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:to="loc_us-gaap_ChangeInUnrealizedGainLossOnForeignCurrencyFairValueHedgingInstruments1_5357CDD8B0D0C86B6706F6FB35F54FFA_d77c289a-ce17-e4ff-e84e-1bb309d5d1a5" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_5357CDD8B0D0C86B6706F6FB35F54FFA_5f96c19e-85fe-99f6-cec0-c2c9d7470ed4" xlink:type="locator"/>
<link:calculationArc order="11" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_5357CDD8B0D0C86B6706F6FB35F54FFA_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_5357CDD8B0D0C86B6706F6FB35F54FFA_5f96c19e-85fe-99f6-cec0-c2c9d7470ed4" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_5357CDD8B0D0C86B6706F6FB35F54FFA_334f1d33-7cae-7fd2-9d83-bb387fc2f3dd" xlink:type="locator"/>
<link:calculationArc order="12" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_5357CDD8B0D0C86B6706F6FB35F54FFA_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_5357CDD8B0D0C86B6706F6FB35F54FFA_334f1d33-7cae-7fd2-9d83-bb387fc2f3dd" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_5357CDD8B0D0C86B6706F6FB35F54FFA_d54a644c-3d3c-bcc1-da30-2f136651f90f" xlink:type="locator"/>
<link:calculationArc order="13" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_5357CDD8B0D0C86B6706F6FB35F54FFA_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_5357CDD8B0D0C86B6706F6FB35F54FFA_d54a644c-3d3c-bcc1-da30-2f136651f90f" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_5357CDD8B0D0C86B6706F6FB35F54FFA_0a39d2ee-656d-ead5-a676-41794b4da8f4" xlink:type="locator"/>
<link:calculationArc order="14" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_5357CDD8B0D0C86B6706F6FB35F54FFA_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_5357CDD8B0D0C86B6706F6FB35F54FFA_0a39d2ee-656d-ead5-a676-41794b4da8f4" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_5357CDD8B0D0C86B6706F6FB35F54FFA_2d76eef5-dce5-0152-632e-9bab39da698c" xlink:type="locator"/>
<link:calculationArc order="15" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_5357CDD8B0D0C86B6706F6FB35F54FFA_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_5357CDD8B0D0C86B6706F6FB35F54FFA_2d76eef5-dce5-0152-632e-9bab39da698c" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital" xlink:label="loc_us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_5357CDD8B0D0C86B6706F6FB35F54FFA_36bbede4-6aaf-abc3-bc7f-42be029fe258" xlink:type="locator"/>
<link:calculationArc order="16" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_5357CDD8B0D0C86B6706F6FB35F54FFA_1bd0bd4e-4a6f-b052-029c-0ecb0c520251" xlink:to="loc_us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_5357CDD8B0D0C86B6706F6FB35F54FFA_36bbede4-6aaf-abc3-bc7f-42be029fe258" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/ConsolidatedStatementsOfComprehensiveIncome" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_cf605d39-9067-2f07-a6b5-7dfa6481009e" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_a10eea14-f4db-3125-d183-77bb54500e95" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_cf605d39-9067-2f07-a6b5-7dfa6481009e" xlink:to="loc_us-gaap_NetIncomeLoss_a10eea14-f4db-3125-d183-77bb54500e95" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_59645a08-ce25-9000-2f65-e4bfddb1182e" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_cf605d39-9067-2f07-a6b5-7dfa6481009e" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_59645a08-ce25-9000-2f65-e4bfddb1182e" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_e83cd656-9fce-43ca-6f7c-1be78bef4068" xlink:type="locator"/>
<link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_59645a08-ce25-9000-2f65-e4bfddb1182e" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_e83cd656-9fce-43ca-6f7c-1be78bef4068" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax_f44275a4-2994-4281-73e3-0fa77d53374b" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_59645a08-ce25-9000-2f65-e4bfddb1182e" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax_f44275a4-2994-4281-73e3-0fa77d53374b" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/ConsolidatedStatementsOfOperations" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_4d7615b5-9ab5-8e33-2d33-f406eee209fc" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_a10eea14-f4db-3125-d183-77bb54500e95" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_4d7615b5-9ab5-8e33-2d33-f406eee209fc" xlink:to="loc_us-gaap_NetIncomeLoss_a10eea14-f4db-3125-d183-77bb54500e95" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_19dfad62-5a43-dcc4-04a8-012732c1ed97" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_a10eea14-f4db-3125-d183-77bb54500e95" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_19dfad62-5a43-dcc4-04a8-012732c1ed97" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_5c890570-5904-7978-36d8-35b96dcf45ab" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_19dfad62-5a43-dcc4-04a8-012732c1ed97" xlink:to="loc_us-gaap_OperatingIncomeLoss_5c890570-5904-7978-36d8-35b96dcf45ab" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaap_GrossProfit_df00e688-c7aa-f044-9cba-c48e7c14e35b" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_5c890570-5904-7978-36d8-35b96dcf45ab" xlink:to="loc_us-gaap_GrossProfit_df00e688-c7aa-f044-9cba-c48e7c14e35b" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_435f940b-a471-4122-5132-a245458f6913" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_df00e688-c7aa-f044-9cba-c48e7c14e35b" xlink:to="loc_us-gaap_Revenues_435f940b-a471-4122-5132-a245458f6913" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CostOfRevenue" xlink:label="loc_us-gaap_CostOfRevenue_a79a15e4-e17e-4bc8-9f1a-c19d2040db8f" xlink:type="locator"/>
<link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_df00e688-c7aa-f044-9cba-c48e7c14e35b" xlink:to="loc_us-gaap_CostOfRevenue_a79a15e4-e17e-4bc8-9f1a-c19d2040db8f" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_693c47dd-e6fa-9c85-6a65-7baa26f76b5e" xlink:type="locator"/>
<link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_5c890570-5904-7978-36d8-35b96dcf45ab" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_693c47dd-e6fa-9c85-6a65-7baa26f76b5e" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_a56b34b7-57ab-a07c-7f03-8366849a14f0" xlink:type="locator"/>
<link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_19dfad62-5a43-dcc4-04a8-012732c1ed97" xlink:to="loc_us-gaap_InterestExpense_a56b34b7-57ab-a07c-7f03-8366849a14f0" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InvestmentIncomeInterest" xlink:label="loc_us-gaap_InvestmentIncomeInterest_5fcda05e-5b0d-7f20-111d-115dec47eebc" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_19dfad62-5a43-dcc4-04a8-012732c1ed97" xlink:to="loc_us-gaap_InvestmentIncomeInterest_5fcda05e-5b0d-7f20-111d-115dec47eebc" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_41e96f8d-e499-8de8-69a8-27f1c7d4df6e" xlink:type="locator"/>
<link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_19dfad62-5a43-dcc4-04a8-012732c1ed97" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_41e96f8d-e499-8de8-69a8-27f1c7d4df6e" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_11620bd8-431c-98f6-ac51-02db9613dc06" xlink:type="locator"/>
<link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_19dfad62-5a43-dcc4-04a8-012732c1ed97" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_11620bd8-431c-98f6-ac51-02db9613dc06" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:type="locator"/>
<link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_a10eea14-f4db-3125-d183-77bb54500e95" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_d01a4d5f-b660-27b4-db84-9a80227862fc" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_a10eea14-f4db-3125-d183-77bb54500e95" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_d01a4d5f-b660-27b4-db84-9a80227862fc" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockDividendsIncomeStatementImpact" xlink:label="loc_us-gaap_PreferredStockDividendsIncomeStatementImpact_63184a46-2bac-760c-5a30-fe8e316dca8f" xlink:type="locator"/>
<link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_4d7615b5-9ab5-8e33-2d33-f406eee209fc" xlink:to="loc_us-gaap_PreferredStockDividendsIncomeStatementImpact_63184a46-2bac-760c-5a30-fe8e316dca8f" xlink:type="arc"/>
<link:loc xlink:href="blbd-20190928.xsd#blbd_PreferredStockRepurchase" xlink:label="loc_blbd_PreferredStockRepurchase_d7615a98-e49e-f8a9-6e85-80b205e44375" xlink:type="locator"/>
<link:calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_4d7615b5-9ab5-8e33-2d33-f406eee209fc" xlink:to="loc_blbd_PreferredStockRepurchase_d7615a98-e49e-f8a9-6e85-80b205e44375" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/Debt" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/DebtDebtCovenantsDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/DebtMaturityScheduleDetails" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_88b8f1df-ff6f-5cd6-e45f-5878f70c11d5" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_5cb3949c-1d57-8f66-f002-a3389de7aec0" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_88b8f1df-ff6f-5cd6-e45f-5878f70c11d5" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_5cb3949c-1d57-8f66-f002-a3389de7aec0" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_53634569-cdf7-3d1b-42b0-596cb4175c67" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_88b8f1df-ff6f-5cd6-e45f-5878f70c11d5" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_53634569-cdf7-3d1b-42b0-596cb4175c67" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_c4573bf7-1f66-8dfe-59b9-b6903f55406f" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_88b8f1df-ff6f-5cd6-e45f-5878f70c11d5" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_c4573bf7-1f66-8dfe-59b9-b6903f55406f" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_e00da32d-ed06-bb21-8b28-7e7ede769972" xlink:type="locator"/>
<link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_88b8f1df-ff6f-5cd6-e45f-5878f70c11d5" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_e00da32d-ed06-bb21-8b28-7e7ede769972" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/DebtNarrativeDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/DebtScheduleOfLongTermDebtDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/DebtTables" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/DocumentAndEntityInformation" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/EarningsPerCommonShareDetails" xlink:type="extended">
<link:loc xlink:href="blbd-20190928.xsd#blbd_NetIncomeLossfromContinuingOperationsAvailableCommonStockholdersBasic" xlink:label="loc_blbd_NetIncomeLossfromContinuingOperationsAvailableCommonStockholdersBasic_47522382-35a0-7c80-eab6-80b206b89d43" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockDividendsIncomeStatementImpact" xlink:label="loc_us-gaap_PreferredStockDividendsIncomeStatementImpact_63184a46-2bac-760c-5a30-fe8e316dca8f" xlink:type="locator"/>
<link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_NetIncomeLossfromContinuingOperationsAvailableCommonStockholdersBasic_47522382-35a0-7c80-eab6-80b206b89d43" xlink:to="loc_us-gaap_PreferredStockDividendsIncomeStatementImpact_63184a46-2bac-760c-5a30-fe8e316dca8f" xlink:type="arc"/>
<link:loc xlink:href="blbd-20190928.xsd#blbd_PreferredStockRepurchase" xlink:label="loc_blbd_PreferredStockRepurchase_d7615a98-e49e-f8a9-6e85-80b205e44375" xlink:type="locator"/>
<link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_NetIncomeLossfromContinuingOperationsAvailableCommonStockholdersBasic_47522382-35a0-7c80-eab6-80b206b89d43" xlink:to="loc_blbd_PreferredStockRepurchase_d7615a98-e49e-f8a9-6e85-80b205e44375" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_a10eea14-f4db-3125-d183-77bb54500e95" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_NetIncomeLossfromContinuingOperationsAvailableCommonStockholdersBasic_47522382-35a0-7c80-eab6-80b206b89d43" xlink:to="loc_us-gaap_NetIncomeLoss_a10eea14-f4db-3125-d183-77bb54500e95" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/EarningsPerCommonShareTables" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/EarningsPerShare" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/EquityInvestmentInAffiliate" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/EquityInvestmentInAffiliateNarrativeDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/Goodwill" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/GoodwillDetails" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_831ad0b9-9dba-3997-20e6-e99a19aa28db" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillGross" xlink:label="loc_us-gaap_GoodwillGross_ffb428e6-c1e5-8a3b-839c-4bf16d5f7341" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Goodwill_831ad0b9-9dba-3997-20e6-e99a19aa28db" xlink:to="loc_us-gaap_GoodwillGross_ffb428e6-c1e5-8a3b-839c-4bf16d5f7341" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GoodwillImpairedAccumulatedImpairmentLoss" xlink:label="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_72c8a016-f15a-cdb4-6551-142480137e47" xlink:type="locator"/>
<link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Goodwill_831ad0b9-9dba-3997-20e6-e99a19aa28db" xlink:to="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_72c8a016-f15a-cdb4-6551-142480137e47" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/GoodwillTables" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/GuaranteesCommitmentsAndContingencies" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/GuaranteesCommitmentsAndContingenciesGuaranteesCommitmentsAndContingenciesScheduleOfLeaseAmountsIncludedOnConsolidatedBalanceSheetsDetails" xlink:type="extended">
<link:loc xlink:href="blbd-20190928.xsd#blbd_LeaseRightOfUseAsset" xlink:label="loc_blbd_LeaseRightOfUseAsset_DF372516FC385ABAEA69EC6F75F270CB" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_52f5671e-53e6-6055-795e-6bd414fd86c2" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_LeaseRightOfUseAsset_DF372516FC385ABAEA69EC6F75F270CB" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_52f5671e-53e6-6055-795e-6bd414fd86c2" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinanceLeaseRightOfUseAsset" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAsset_b54d8caa-f4e6-5da2-d7a5-67f9fcda4cc5" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_LeaseRightOfUseAsset_DF372516FC385ABAEA69EC6F75F270CB" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAsset_b54d8caa-f4e6-5da2-d7a5-67f9fcda4cc5" xlink:type="arc"/>
<link:loc xlink:href="blbd-20190928.xsd#blbd_LeaseLiability" xlink:label="loc_blbd_LeaseLiability_AD22FC584D5247052C96EC734E7299C5" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeaseLiabilityCurrent" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_09c9f846-159b-1776-fceb-d1cad0eb94ab" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_LeaseLiability_AD22FC584D5247052C96EC734E7299C5" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_09c9f846-159b-1776-fceb-d1cad0eb94ab" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinanceLeaseLiabilityCurrent" xlink:label="loc_us-gaap_FinanceLeaseLiabilityCurrent_1396153e-4fa1-90ea-08ee-fec369a9d7aa" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_LeaseLiability_AD22FC584D5247052C96EC734E7299C5" xlink:to="loc_us-gaap_FinanceLeaseLiabilityCurrent_1396153e-4fa1-90ea-08ee-fec369a9d7aa" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_7e28dff2-da63-21d2-137e-ce9d56cb1b6e" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_LeaseLiability_AD22FC584D5247052C96EC734E7299C5" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_7e28dff2-da63-21d2-137e-ce9d56cb1b6e" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinanceLeaseLiabilityNoncurrent" xlink:label="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_a2966f09-089c-308f-404f-2425a9943c5c" xlink:type="locator"/>
<link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_LeaseLiability_AD22FC584D5247052C96EC734E7299C5" xlink:to="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_a2966f09-089c-308f-404f-2425a9943c5c" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/GuaranteesCommitmentsAndContingenciesLeaseTermsAndDiscountRatesDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/GuaranteesCommitmentsAndContingenciesNarrativeDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/GuaranteesCommitmentsAndContingenciesPurchaseCommitmentsDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/GuaranteesCommitmentsAndContingenciesScheduleOfLeaseCostsDetails" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LeaseCost" xlink:label="loc_us-gaap_LeaseCost_d5a06061-b83d-0d55-b7d3-e1229681b86d" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinanceLeaseRightOfUseAssetAmortization" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_0c835b1b-073b-1726-45ed-7f72b8f658d6" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_d5a06061-b83d-0d55-b7d3-e1229681b86d" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization_0c835b1b-073b-1726-45ed-7f72b8f658d6" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinanceLeaseInterestExpense" xlink:label="loc_us-gaap_FinanceLeaseInterestExpense_ebcb44d8-f146-8715-996b-062bb9d8d43e" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_d5a06061-b83d-0d55-b7d3-e1229681b86d" xlink:to="loc_us-gaap_FinanceLeaseInterestExpense_ebcb44d8-f146-8715-996b-062bb9d8d43e" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShortTermLeaseCost" xlink:label="loc_us-gaap_ShortTermLeaseCost_ae5c8735-cccc-5c5f-b5a8-6bc37dbfd64d" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_d5a06061-b83d-0d55-b7d3-e1229681b86d" xlink:to="loc_us-gaap_ShortTermLeaseCost_ae5c8735-cccc-5c5f-b5a8-6bc37dbfd64d" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeaseCost" xlink:label="loc_us-gaap_OperatingLeaseCost_f08a7953-47bc-6d58-e55f-aa8ab4131b72" xlink:type="locator"/>
<link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LeaseCost_d5a06061-b83d-0d55-b7d3-e1229681b86d" xlink:to="loc_us-gaap_OperatingLeaseCost_f08a7953-47bc-6d58-e55f-aa8ab4131b72" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/GuaranteesCommitmentsAndContingenciesScheduleOfLeaseLiabilityMaturitiesDetails" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_4d26bd18-43c4-5981-04d4-83d0e9328a1d" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_198c3642-781c-a7d4-6f7d-8400ab29b18c" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_4d26bd18-43c4-5981-04d4-83d0e9328a1d" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_198c3642-781c-a7d4-6f7d-8400ab29b18c" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_e0f20176-305e-e29f-ab09-584aea596901" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_4d26bd18-43c4-5981-04d4-83d0e9328a1d" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_e0f20176-305e-e29f-ab09-584aea596901" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_8e35e675-3955-0e95-1b9c-d08dd410962e" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_4d26bd18-43c4-5981-04d4-83d0e9328a1d" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_8e35e675-3955-0e95-1b9c-d08dd410962e" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_852d78fc-d4b9-e5fb-fd5a-9da7d3d49669" xlink:type="locator"/>
<link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_4d26bd18-43c4-5981-04d4-83d0e9328a1d" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_852d78fc-d4b9-e5fb-fd5a-9da7d3d49669" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_7a6864a2-d55e-24e7-17f1-75d5cad038ee" xlink:type="locator"/>
<link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_4d26bd18-43c4-5981-04d4-83d0e9328a1d" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_7a6864a2-d55e-24e7-17f1-75d5cad038ee" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_a8c7556a-9f4c-b4fb-2e42-b21cf84287a7" xlink:type="locator"/>
<link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_4d26bd18-43c4-5981-04d4-83d0e9328a1d" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_a8c7556a-9f4c-b4fb-2e42-b21cf84287a7" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDue" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_10e0bd29-5982-7ebb-bb17-5361bca728ac" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_d2606028-2917-1ad1-5310-c67e3bddb159" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_10e0bd29-5982-7ebb-bb17-5361bca728ac" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_d2606028-2917-1ad1-5310-c67e3bddb159" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_9a13a07a-4477-75df-f259-93d353e0436e" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_10e0bd29-5982-7ebb-bb17-5361bca728ac" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_9a13a07a-4477-75df-f259-93d353e0436e" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_9b0526b4-fafb-8f2d-7747-7f90a19a677b" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_10e0bd29-5982-7ebb-bb17-5361bca728ac" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_9b0526b4-fafb-8f2d-7747-7f90a19a677b" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_0b9b28ab-56f0-4494-24e3-113280a3b1c8" xlink:type="locator"/>
<link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_10e0bd29-5982-7ebb-bb17-5361bca728ac" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_0b9b28ab-56f0-4494-24e3-113280a3b1c8" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive_7c9dbff4-7abb-6fd4-3703-b36ff0ec4db1" xlink:type="locator"/>
<link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_10e0bd29-5982-7ebb-bb17-5361bca728ac" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive_7c9dbff4-7abb-6fd4-3703-b36ff0ec4db1" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive_65c921ee-6821-8462-c642-88b91245cd59" xlink:type="locator"/>
<link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_10e0bd29-5982-7ebb-bb17-5361bca728ac" xlink:to="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive_65c921ee-6821-8462-c642-88b91245cd59" xlink:type="arc"/>
<link:loc xlink:href="blbd-20190928.xsd#blbd_LeaseLiabilityPaymentsDue" xlink:label="loc_blbd_LeaseLiabilityPaymentsDue_7BF783D850E133511755EDA9B471ED8D" xlink:type="locator"/>
<link:loc xlink:href="blbd-20190928.xsd#blbd_LeaseLiabilityPaymentsDueNextTwelveMonths" xlink:label="loc_blbd_LeaseLiabilityPaymentsDueNextTwelveMonths_9350C5D970E72F7E5410EDABF5CC1736" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_LeaseLiabilityPaymentsDue_7BF783D850E133511755EDA9B471ED8D" xlink:to="loc_blbd_LeaseLiabilityPaymentsDueNextTwelveMonths_9350C5D970E72F7E5410EDABF5CC1736" xlink:type="arc"/>
<link:loc xlink:href="blbd-20190928.xsd#blbd_LeaseLiabilityPaymentsDueYearTwo" xlink:label="loc_blbd_LeaseLiabilityPaymentsDueYearTwo_3DBCC964C3A283467E5FEDA6D51B6013" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_LeaseLiabilityPaymentsDue_7BF783D850E133511755EDA9B471ED8D" xlink:to="loc_blbd_LeaseLiabilityPaymentsDueYearTwo_3DBCC964C3A283467E5FEDA6D51B6013" xlink:type="arc"/>
<link:loc xlink:href="blbd-20190928.xsd#blbd_LeaseLiabilityPaymentsDueYearThree" xlink:label="loc_blbd_LeaseLiabilityPaymentsDueYearThree_EA0B7006BCC9F865D84DEDA776F89669" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_LeaseLiabilityPaymentsDue_7BF783D850E133511755EDA9B471ED8D" xlink:to="loc_blbd_LeaseLiabilityPaymentsDueYearThree_EA0B7006BCC9F865D84DEDA776F89669" xlink:type="arc"/>
<link:loc xlink:href="blbd-20190928.xsd#blbd_LeaseLiabilityPaymentsDueYearFour" xlink:label="loc_blbd_LeaseLiabilityPaymentsDueYearFour_9778948AA1343C7299F7EDA7EE46E08A" xlink:type="locator"/>
<link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_LeaseLiabilityPaymentsDue_7BF783D850E133511755EDA9B471ED8D" xlink:to="loc_blbd_LeaseLiabilityPaymentsDueYearFour_9778948AA1343C7299F7EDA7EE46E08A" xlink:type="arc"/>
<link:loc xlink:href="blbd-20190928.xsd#blbd_LeaseLiabilityPaymentsDueYearFive" xlink:label="loc_blbd_LeaseLiabilityPaymentsDueYearFive_885E802ECC7DBFB057E1EDA86D681BCB" xlink:type="locator"/>
<link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_LeaseLiabilityPaymentsDue_7BF783D850E133511755EDA9B471ED8D" xlink:to="loc_blbd_LeaseLiabilityPaymentsDueYearFive_885E802ECC7DBFB057E1EDA86D681BCB" xlink:type="arc"/>
<link:loc xlink:href="blbd-20190928.xsd#blbd_LeaseLiabilityPaymentsDueAfterYearFive" xlink:label="loc_blbd_LeaseLiabilityPaymentsDueAfterYearFive_9611BCC4546E0AF166EBEDA929300E88" xlink:type="locator"/>
<link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_LeaseLiabilityPaymentsDue_7BF783D850E133511755EDA9B471ED8D" xlink:to="loc_blbd_LeaseLiabilityPaymentsDueAfterYearFive_9611BCC4546E0AF166EBEDA929300E88" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/GuaranteesCommitmentsAndContingenciesScheduleOfLeaseLiabilityMaturitiesDetailsCalc2" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_8DDC32C837E97E4DE1A8EDA22E2BFAF2_4d26bd18-43c4-5981-04d4-83d0e9328a1d" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_8DDC32C837E97E4DE1A8EDA22E2BFAF2_dba432e7-eec4-e0dc-718d-f46fe263fe47" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_8DDC32C837E97E4DE1A8EDA22E2BFAF2_4d26bd18-43c4-5981-04d4-83d0e9328a1d" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_8DDC32C837E97E4DE1A8EDA22E2BFAF2_dba432e7-eec4-e0dc-718d-f46fe263fe47" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeaseLiability" xlink:label="loc_us-gaap_OperatingLeaseLiability_8DDC32C837E97E4DE1A8EDA22E2BFAF2_41784c6f-4555-af92-3354-8f8701c77f60" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_8DDC32C837E97E4DE1A8EDA22E2BFAF2_4d26bd18-43c4-5981-04d4-83d0e9328a1d" xlink:to="loc_us-gaap_OperatingLeaseLiability_8DDC32C837E97E4DE1A8EDA22E2BFAF2_41784c6f-4555-af92-3354-8f8701c77f60" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDue" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_8DDC32C837E97E4DE1A8EDA22E2BFAF2_10e0bd29-5982-7ebb-bb17-5361bca728ac" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount" xlink:label="loc_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_8DDC32C837E97E4DE1A8EDA22E2BFAF2_ad6eb3ad-e10c-27fa-bfaf-ecbc91c6e0bd" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_8DDC32C837E97E4DE1A8EDA22E2BFAF2_10e0bd29-5982-7ebb-bb17-5361bca728ac" xlink:to="loc_us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_8DDC32C837E97E4DE1A8EDA22E2BFAF2_ad6eb3ad-e10c-27fa-bfaf-ecbc91c6e0bd" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinanceLeaseLiability" xlink:label="loc_us-gaap_FinanceLeaseLiability_8DDC32C837E97E4DE1A8EDA22E2BFAF2_f8462fb4-d805-7572-eefc-3247d0b39ea6" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDue_8DDC32C837E97E4DE1A8EDA22E2BFAF2_10e0bd29-5982-7ebb-bb17-5361bca728ac" xlink:to="loc_us-gaap_FinanceLeaseLiability_8DDC32C837E97E4DE1A8EDA22E2BFAF2_f8462fb4-d805-7572-eefc-3247d0b39ea6" xlink:type="arc"/>
<link:loc xlink:href="blbd-20190928.xsd#blbd_LeaseLiabilityPaymentsDue" xlink:label="loc_blbd_LeaseLiabilityPaymentsDue_8DDC32C837E97E4DE1A8EDA22E2BFAF2_7BF783D850E133511755EDA9B471ED8D" xlink:type="locator"/>
<link:loc xlink:href="blbd-20190928.xsd#blbd_LeaseLiabilityUndiscountedExcessAmount" xlink:label="loc_blbd_LeaseLiabilityUndiscountedExcessAmount_8DDC32C837E97E4DE1A8EDA22E2BFAF2_8E917F51586297F8BC1CEDAA442F885B" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_LeaseLiabilityPaymentsDue_8DDC32C837E97E4DE1A8EDA22E2BFAF2_7BF783D850E133511755EDA9B471ED8D" xlink:to="loc_blbd_LeaseLiabilityUndiscountedExcessAmount_8DDC32C837E97E4DE1A8EDA22E2BFAF2_8E917F51586297F8BC1CEDAA442F885B" xlink:type="arc"/>
<link:loc xlink:href="blbd-20190928.xsd#blbd_LeaseLiability" xlink:label="loc_blbd_LeaseLiability_8DDC32C837E97E4DE1A8EDA22E2BFAF2_AD22FC584D5247052C96EC734E7299C5" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_blbd_LeaseLiabilityPaymentsDue_8DDC32C837E97E4DE1A8EDA22E2BFAF2_7BF783D850E133511755EDA9B471ED8D" xlink:to="loc_blbd_LeaseLiability_8DDC32C837E97E4DE1A8EDA22E2BFAF2_AD22FC584D5247052C96EC734E7299C5" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/GuaranteesCommitmentsAndContingenciesSupplementalCashFlowInformationDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/GuaranteesCommitmentsAndContingenciesTables" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/IncomeTaxes" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_c003e837-c7c9-cd10-ae74-916131fdc333" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilities" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilities_5ca8e732-540c-5527-8ee3-c835dafc5838" xlink:type="locator"/>
<link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_c003e837-c7c9-cd10-ae74-916131fdc333" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilities_5ca8e732-540c-5527-8ee3-c835dafc5838" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_4ed01819-014a-ce74-957e-ddc9b0c1d62e" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_5ca8e732-540c-5527-8ee3-c835dafc5838" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_4ed01819-014a-ce74-957e-ddc9b0c1d62e" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_42b61cde-44f6-df44-52b0-1b84b1e28a47" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_5ca8e732-540c-5527-8ee3-c835dafc5838" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_42b61cde-44f6-df44-52b0-1b84b1e28a47" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates_e556a1a0-2874-89d2-65de-b752e2812eb4" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_5ca8e732-540c-5527-8ee3-c835dafc5838" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates_e556a1a0-2874-89d2-65de-b752e2812eb4" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxLiabilitiesOtherFiniteLivedAssets" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesOtherFiniteLivedAssets_c3b24051-a826-dee8-5050-ff84344fc2b9" xlink:type="locator"/>
<link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_5ca8e732-540c-5527-8ee3-c835dafc5838" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesOtherFiniteLivedAssets_c3b24051-a826-dee8-5050-ff84344fc2b9" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsNet" xlink:label="loc_us-gaap_DeferredTaxAssetsNet_476b367a-1ad6-eb34-c01b-595b754b8aa8" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_c003e837-c7c9-cd10-ae74-916131fdc333" xlink:to="loc_us-gaap_DeferredTaxAssetsNet_476b367a-1ad6-eb34-c01b-595b754b8aa8" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsGross" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_d91ede05-f13f-9c89-cfbf-3dfb1dd1a1a6" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsNet_476b367a-1ad6-eb34-c01b-595b754b8aa8" xlink:to="loc_us-gaap_DeferredTaxAssetsGross_d91ede05-f13f-9c89-cfbf-3dfb1dd1a1a6" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_877d9548-0a6d-f5af-1e31-5b1edfc4107e" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_d91ede05-f13f-9c89-cfbf-3dfb1dd1a1a6" xlink:to="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_877d9548-0a6d-f5af-1e31-5b1edfc4107e" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_0864ed24-ce54-e1c2-020c-493202e26239" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_d91ede05-f13f-9c89-cfbf-3dfb1dd1a1a6" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_0864ed24-ce54-e1c2-020c-493202e26239" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation_e8fd0f39-0d07-8442-4833-5ebc3fe9de2e" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_d91ede05-f13f-9c89-cfbf-3dfb1dd1a1a6" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation_e8fd0f39-0d07-8442-4833-5ebc3fe9de2e" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsInventory" xlink:label="loc_us-gaap_DeferredTaxAssetsInventory_475c85ca-97e4-c8e8-9ee2-6c534eb18ace" xlink:type="locator"/>
<link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_d91ede05-f13f-9c89-cfbf-3dfb1dd1a1a6" xlink:to="loc_us-gaap_DeferredTaxAssetsInventory_475c85ca-97e4-c8e8-9ee2-6c534eb18ace" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsDeferredIncome" xlink:label="loc_us-gaap_DeferredTaxAssetsDeferredIncome_0e2dc226-85ed-d782-cf37-e83741c371ce" xlink:type="locator"/>
<link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_d91ede05-f13f-9c89-cfbf-3dfb1dd1a1a6" xlink:to="loc_us-gaap_DeferredTaxAssetsDeferredIncome_0e2dc226-85ed-d782-cf37-e83741c371ce" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsTaxCreditCarryforwards" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwards_a38b9623-d40d-b02c-d37f-d84fb6a4eac7" xlink:type="locator"/>
<link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_d91ede05-f13f-9c89-cfbf-3dfb1dd1a1a6" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxCreditCarryforwards_a38b9623-d40d-b02c-d37f-d84fb6a4eac7" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_d9af76c3-a64a-3b37-1d7d-4e9be8c70af6" xlink:type="locator"/>
<link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsNet_476b367a-1ad6-eb34-c01b-595b754b8aa8" xlink:to="loc_us-gaap_DeferredTaxAssetsValuationAllowance_d9af76c3-a64a-3b37-1d7d-4e9be8c70af6" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/IncomeTaxesDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_46fd3e47-b379-3d5b-dad7-1fdc5e88b67f" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_46fd3e47-b379-3d5b-dad7-1fdc5e88b67f" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:label="loc_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_147896db-b2dd-402f-9f5b-8c57c745a45a" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_147896db-b2dd-402f-9f5b-8c57c745a45a" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationTaxContingencies" xlink:label="loc_us-gaap_IncomeTaxReconciliationTaxContingencies_3ede50f4-da6a-3a1f-1cc5-ed56405717a3" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_us-gaap_IncomeTaxReconciliationTaxContingencies_3ede50f4-da6a-3a1f-1cc5-ed56405717a3" xlink:type="arc"/>
<link:loc xlink:href="blbd-20190928.xsd#blbd_EffectiveIncomeTaxRateReconciliationNondeductibleExpensePermanentDifferencesAmount" xlink:label="loc_blbd_EffectiveIncomeTaxRateReconciliationNondeductibleExpensePermanentDifferencesAmount_c9085a45-e9f7-5116-9a62-80b206be4358" xlink:type="locator"/>
<link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_blbd_EffectiveIncomeTaxRateReconciliationNondeductibleExpensePermanentDifferencesAmount_c9085a45-e9f7-5116-9a62-80b206be4358" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance_403b8245-2a5c-b405-4865-11cfdebd2992" xlink:type="locator"/>
<link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance_403b8245-2a5c-b405-4865-11cfdebd2992" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationTaxCredits" xlink:label="loc_us-gaap_IncomeTaxReconciliationTaxCredits_a3f26c1e-91b7-2880-1113-1647820fec09" xlink:type="locator"/>
<link:calculationArc order="6" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_us-gaap_IncomeTaxReconciliationTaxCredits_a3f26c1e-91b7-2880-1113-1647820fec09" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationOtherAdjustments" xlink:label="loc_us-gaap_IncomeTaxReconciliationOtherAdjustments_7c88fa1f-0edb-d24c-9b87-0646da5010cf" xlink:type="locator"/>
<link:calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_us-gaap_IncomeTaxReconciliationOtherAdjustments_7c88fa1f-0edb-d24c-9b87-0646da5010cf" xlink:type="arc"/>
<link:loc xlink:href="blbd-20190928.xsd#blbd_EffectiveIncomeTaxRateReconciliationEquityinEarningsofEquityMethodInvestmentsAmount" xlink:label="loc_blbd_EffectiveIncomeTaxRateReconciliationEquityinEarningsofEquityMethodInvestmentsAmount_01963866-86f7-6e03-b29c-80b206cfa84a" xlink:type="locator"/>
<link:calculationArc order="8" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_blbd_EffectiveIncomeTaxRateReconciliationEquityinEarningsofEquityMethodInvestmentsAmount_01963866-86f7-6e03-b29c-80b206cfa84a" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate" xlink:label="loc_us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate_b8a6f67f-d570-db88-37fa-3568c826ebc5" xlink:type="locator"/>
<link:calculationArc order="9" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate_b8a6f67f-d570-db88-37fa-3568c826ebc5" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther" xlink:label="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther_debb22de-4eff-9a44-9569-2ec0efafa179" xlink:type="locator"/>
<link:calculationArc order="10" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther_debb22de-4eff-9a44-9569-2ec0efafa179" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost" xlink:label="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost_2fc8d554-3ed0-9aae-a23b-3842180d9904" xlink:type="locator"/>
<link:calculationArc order="11" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost_2fc8d554-3ed0-9aae-a23b-3842180d9904" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/IncomeTaxesIncomeTaxBenefitExpenseDetails" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_816edbc5-9d4b-113c-7ce2-6c08dd555314" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_816edbc5-9d4b-113c-7ce2-6c08dd555314" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CurrentFederalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentFederalTaxExpenseBenefit_b975ff9b-a11f-f2b5-e104-e0266dbbbfc6" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_816edbc5-9d4b-113c-7ce2-6c08dd555314" xlink:to="loc_us-gaap_CurrentFederalTaxExpenseBenefit_b975ff9b-a11f-f2b5-e104-e0266dbbbfc6" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_4d365c95-da3d-c3cb-6f6b-7945d285af9f" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_816edbc5-9d4b-113c-7ce2-6c08dd555314" xlink:to="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_4d365c95-da3d-c3cb-6f6b-7945d285af9f" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CurrentForeignTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentForeignTaxExpenseBenefit_bbb5a6cc-fe5e-18f1-e9f0-76884d58b714" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_816edbc5-9d4b-113c-7ce2-6c08dd555314" xlink:to="loc_us-gaap_CurrentForeignTaxExpenseBenefit_bbb5a6cc-fe5e-18f1-e9f0-76884d58b714" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_e8a9abf2-38d3-77d1-fb6b-693fef632294" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_97bbae57-7f84-4da9-acab-610e56204929" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_e8a9abf2-38d3-77d1-fb6b-693fef632294" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_650e6c8f-1409-4de1-126f-784909f82e64" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_e8a9abf2-38d3-77d1-fb6b-693fef632294" xlink:to="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_650e6c8f-1409-4de1-126f-784909f82e64" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_10aa09ac-60b4-bd88-6c3b-c85b3f0fbf0a" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_e8a9abf2-38d3-77d1-fb6b-693fef632294" xlink:to="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_10aa09ac-60b4-bd88-6c3b-c85b3f0fbf0a" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/IncomeTaxesTables" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/IntangibleAssets" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/IntangibleAssetsDetails" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_af012273-e8ee-655c-daa2-86b96989d377" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IntangibleAssetsGrossExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_e52879aa-5fc1-863a-9bc7-07b154238ef5" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_af012273-e8ee-655c-daa2-86b96989d377" xlink:to="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_e52879aa-5fc1-863a-9bc7-07b154238ef5" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_c9279b6a-f262-f140-7696-5ec40778343f" xlink:type="locator"/>
<link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_af012273-e8ee-655c-daa2-86b96989d377" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_c9279b6a-f262-f140-7696-5ec40778343f" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d3bdc20c-5c58-6be6-d756-0ace6a97f212" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_7a49df76-38f6-6baa-87dd-2e9a7efd8303" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d3bdc20c-5c58-6be6-d756-0ace6a97f212" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_7a49df76-38f6-6baa-87dd-2e9a7efd8303" xlink:type="arc"/>
<link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d3bdc20c-5c58-6be6-d756-0ace6a97f212" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_c9279b6a-f262-f140-7696-5ec40778343f" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/IntangibleAssetsNarrativeDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/IntangibleAssetsScheduleOfExpectedAmortizationExpenseDetails" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d3bdc20c-5c58-6be6-d756-0ace6a97f212" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_423e6bba-f43d-931c-5711-51d5522b2aaa" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d3bdc20c-5c58-6be6-d756-0ace6a97f212" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_423e6bba-f43d-931c-5711-51d5522b2aaa" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_28c91f3b-370e-e76f-4199-69e4166aabc6" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d3bdc20c-5c58-6be6-d756-0ace6a97f212" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_28c91f3b-370e-e76f-4199-69e4166aabc6" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_f7796428-4176-97fe-5145-79a026d8547a" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d3bdc20c-5c58-6be6-d756-0ace6a97f212" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_f7796428-4176-97fe-5145-79a026d8547a" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_71fd8e03-8eaf-f20c-786b-5e0492fb281b" xlink:type="locator"/>
<link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d3bdc20c-5c58-6be6-d756-0ace6a97f212" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_71fd8e03-8eaf-f20c-786b-5e0492fb281b" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_8d652bfd-fc92-51b1-30d6-b90c4a94f960" xlink:type="locator"/>
<link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d3bdc20c-5c58-6be6-d756-0ace6a97f212" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_8d652bfd-fc92-51b1-30d6-b90c4a94f960" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_0e7343bd-e798-afc0-7fcc-ed296ae9f91c" xlink:type="locator"/>
<link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_d3bdc20c-5c58-6be6-d756-0ace6a97f212" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_0e7343bd-e798-afc0-7fcc-ed296ae9f91c" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/IntangibleAssetsTables" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/Inventories" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/InventoriesDetails" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaap_InventoryNet_66bcd79a-a1c3-c24d-b8b4-7a0ce373714b" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryRawMaterialsNetOfReserves" xlink:label="loc_us-gaap_InventoryRawMaterialsNetOfReserves_a979ceab-3c76-a4d5-9d1d-ca902d5e8595" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_66bcd79a-a1c3-c24d-b8b4-7a0ce373714b" xlink:to="loc_us-gaap_InventoryRawMaterialsNetOfReserves_a979ceab-3c76-a4d5-9d1d-ca902d5e8595" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryWorkInProcessNetOfReserves" xlink:label="loc_us-gaap_InventoryWorkInProcessNetOfReserves_02cb866c-0b1c-51f5-8ed3-3272dfc8c769" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_66bcd79a-a1c3-c24d-b8b4-7a0ce373714b" xlink:to="loc_us-gaap_InventoryWorkInProcessNetOfReserves_02cb866c-0b1c-51f5-8ed3-3272dfc8c769" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryFinishedGoodsNetOfReserves" xlink:label="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_c2dd0840-de07-383b-bde9-fb229532490d" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_InventoryNet_66bcd79a-a1c3-c24d-b8b4-7a0ce373714b" xlink:to="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_c2dd0840-de07-383b-bde9-fb229532490d" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/InventoriesTables" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/NatureOfBusinessAndBasisOfPresentation" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/NatureOfBusinessAndBasisOfPresentationNarrativeDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/PropertyPlantAndEquipment" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/PropertyPlantAndEquipmentDetails" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_f37ad080-c77a-efc5-c936-389b16abc420" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_78662f7f-2a6a-5d68-ba8a-7947ed287be5" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_f37ad080-c77a-efc5-c936-389b16abc420" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_78662f7f-2a6a-5d68-ba8a-7947ed287be5" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_0a08cda9-11b3-e7ac-3fc9-3a23c67d9b96" xlink:type="locator"/>
<link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_f37ad080-c77a-efc5-c936-389b16abc420" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_0a08cda9-11b3-e7ac-3fc9-3a23c67d9b96" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_52f5671e-53e6-6055-795e-6bd414fd86c2" xlink:type="locator"/>
<link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_f37ad080-c77a-efc5-c936-389b16abc420" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_52f5671e-53e6-6055-795e-6bd414fd86c2" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/PropertyPlantAndEquipmentTables" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/Revenue" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/RevenueDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/RevenueTables" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/ScheduleIiValuationAndQualifyingAccounts" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/SegmentInformation" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/SegmentInformationDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/SegmentInformationReconciliationOfSegmentGrossProfitDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/SegmentInformationTables" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/ShareBasedCompensation" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/ShareBasedCompensationDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/ShareBasedCompensationFairValueAssumptionsDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/ShareBasedCompensationNarrativeDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/ShareBasedCompensationRestrictedStockAndUnitActivityDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/ShareBasedCompensationTables" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/StockholdersDeficit" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/StockholdersDeficitDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/SummaryOfSignificantAccountingPolicies" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/SummaryOfSignificantAccountingPoliciesScheduleOfPreviouslyReportedResultsOfOperationsDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/SummaryOfSignificantAccountingPoliciesUsefulLivesOfPropertyPlantAndEquipmentDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/SupplementalFinancialInformation" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/SupplementalFinancialInformationAccountsReceivableDetails" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_928a1618-af56-709a-989c-a303706b8ca2" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsReceivableGrossCurrent" xlink:label="loc_us-gaap_AccountsReceivableGrossCurrent_45cbec74-5197-2285-8251-611db0876ff5" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsReceivableNetCurrent_928a1618-af56-709a-989c-a303706b8ca2" xlink:to="loc_us-gaap_AccountsReceivableGrossCurrent_45cbec74-5197-2285-8251-611db0876ff5" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_5ef460eb-b1a1-6cff-4c94-df85c1a14f84" xlink:type="locator"/>
<link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccountsReceivableNetCurrent_928a1618-af56-709a-989c-a303706b8ca2" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_5ef460eb-b1a1-6cff-4c94-df85c1a14f84" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/SupplementalFinancialInformationDerivativeInstrumentsDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/SupplementalFinancialInformationExtendedWarrantyIncomeDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/SupplementalFinancialInformationNarrativeDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/SupplementalFinancialInformationProductWarrantyRollforwardDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/SupplementalFinancialInformationRemainingPerformanceObligationDetails" xlink:type="extended"/>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/SupplementalFinancialInformationSelfInsuranceDetails" xlink:type="extended">
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SelfInsuranceReserve" xlink:label="loc_us-gaap_SelfInsuranceReserve_6233421d-f029-442e-cd34-2a47b262e478" xlink:type="locator"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SelfInsuranceReserveCurrent" xlink:label="loc_us-gaap_SelfInsuranceReserveCurrent_efb5c6e3-bc9d-7ca4-e180-73a967d3aa45" xlink:type="locator"/>
<link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SelfInsuranceReserve_6233421d-f029-442e-cd34-2a47b262e478" xlink:to="loc_us-gaap_SelfInsuranceReserveCurrent_efb5c6e3-bc9d-7ca4-e180-73a967d3aa45" xlink:type="arc"/>
<link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SelfInsuranceReserveNoncurrent" xlink:label="loc_us-gaap_SelfInsuranceReserveNoncurrent_38e2f9ff-f07f-e2ec-aeec-7145af691562" xlink:type="locator"/>
<link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_SelfInsuranceReserve_6233421d-f029-442e-cd34-2a47b262e478" xlink:to="loc_us-gaap_SelfInsuranceReserveNoncurrent_38e2f9ff-f07f-e2ec-aeec-7145af691562" xlink:type="arc"/>
</link:calculationLink>
<link:calculationLink xlink:role="http://www.blue-bird.com/role/SupplementalFinancialInformationTables" xlink:type="extended"/>
</link:linkbase>


4 Subsequent Filings that Reference this Filing

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

12/11/23  Blue Bird Corp.                   10-K        9/30/23  130:13M
12/12/22  Blue Bird Corp.                   10-K       10/01/22  124:15M
12/15/21  Blue Bird Corp.                   10-K       10/02/21  123:12M
12/17/20  Blue Bird Corp.                   10-K       10/03/20  118:12M
Top
Filing Submission 0001589526-19-000054   –   Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)

Copyright © 2024 Fran Finnegan & Company LLC – All Rights Reserved.
AboutPrivacyRedactionsHelp — Sun., May 5, 5:45:51.2am ET