Why It Matters
The GM 12-bolt rear axle is kept separate from Positraction so car pages can cite the axle housing without asserting a specific differential option or ratio.
Also Known As
12-bolt rear axleGM 12-boltChevrolet 12-bolt rear axle
Part profile
GM 12-bolt rear axle
axle · General Motors
Used On
21 linked car pages.
SS396 sport coupe or convertible
1966 Chevrolet Chevelle SS 396 L78
1966 SS396 sport coupes and convertibles are listed as 13817 and 13867 SS396 models.
2-door sport coupe or convertible
1967 Chevrolet Camaro SS 396
L35 396 cid big-block V8, 325 hp
2-door sport coupe
1967 Chevrolet Camaro Z/28
Factory RPO Z28 Special Performance Package on Camaro coupe
SS396 sport coupe or convertible
1967 Chevrolet Chevelle SS 396 L78
1967 SS396 is identified by 13817 sport coupe and 13867 convertible series references.
Nova Super Sport 2-door hardtop coupe
1967 Chevrolet Chevy II Nova SS L79 327
The 1967 Nova Super Sport was available only as a two-door hardtop coupe.
2-door Sport Coupe / convertible SS body path
1967 Chevrolet Impala SS427
RPO Z24 SS427 package on the 1967 Impala Super Sport body path
V8 sport coupe or convertible
1968 Chevrolet Camaro RS SS 350
1968 Camaro Rally Sport appearance package combined with the Super Sport L48 350/295 hp path
V8 sport coupe or convertible
1968 Chevrolet Camaro SS 396
Factory Chevrolet Camaro Super Sport
2-door sport coupe
1968 Chevrolet Camaro Z/28
Factory Chevrolet RPO Z28 package
SS396 series: sport coupe, convertible, or El Camino pickup
1968 Chevrolet Chevelle SS 396
Factory Chevrolet SS396 series
2-door Sport Coupe / Custom Coupe / convertible option path
1968 Chevrolet Impala SS427
RPO Z24 SS427 option-package path on 1968 Impala two-door and convertible body styles
V8 sport coupe or convertible
1969 Chevrolet Camaro SS 350
1969 Camaro Super Sport with the base Z27 L48 350/300 hp engine
V8 sport coupe or convertible
1969 Chevrolet Camaro SS 396 L78
1969 Camaro Super Sport with the L78 396/375 hp big-block option
Factory Z25 SS 396 package; eligible 1969 Chevelle body style not fixed by target
1969 Chevrolet Chevelle SS 396 L78
RPO Z25 SS 396 Chevelle with optional RPO L78 engine
Convertible / Custom Coupe / Sport Coupe
1969 Chevrolet Impala SS427
Final-year RPO Z24 SS427 Impala path, tied to Model Series 16400 in the checked 1969-specific reference
Malibu V8 sport coupe, convertible, or El Camino SS 454 pathway
1970 Chevrolet Chevelle SS 454 LS5
RPO Z15 SS 454 package on eligible V8 Malibu body styles.
Malibu two-door sport coupe or convertible
1970 Chevrolet Chevelle SS 454 LS6
Factory Chevrolet SS454 package, documented as RPO Z15 in registry evidence
Two-door coupe utility / pickup-style A-body with integrated cargo bed
1970 Chevrolet El Camino SS 454 LS5
Factory Chevrolet El Camino SS454 pathway with LS5 identity handled through paperwork and drivetrain checks
Two-door coupe utility / pickup-style A-body with integrated cargo bed
1970 Chevrolet El Camino SS 454 LS6
Factory Chevrolet El Camino SS454 pathway with LS6 evidence handled through paperwork-first checks
2-door coupe
1971 Chevrolet Monte Carlo SS 454
RPO Z20 Monte Carlo SS package, listed at 1,919 units in the checked 1971 options table
Malibu SS coupe or station wagon; exact body style is car-specific
1973 Chevrolet Chevelle SS 454
1973 Malibu-series SS option with LS4 454 evidence