Eaton K-GM12CR GM 8.875-Inch Rear Master Differential Installation Kit

Eaton master installation kits make upgrading your differential easier by providing all the components needed to properly install your Eaton differential or replace your ring and pinion, in one box. Premium bearings and components ensure long life and quiet operation. Eaton Master Differential Install Kit; Rear; GM 8.875 in.; 12 Cover Bolts; 12 Ring Gear Bolts; 30/33 Axle Spline; 30 Pinion Spline; Standard Rotation;

• Includes all necessary components to complete installation
• Reference Eatons application guide to confirm part fitment
• For Eaton: 187C197A; 187S196A; 913A555; 914A576; 914A575
• Eaton only uses premium bearings
• For Eaton: 19554-010; 19555-010
• Fits 1964 - 1972 applications
• Rear

The Eaton K-GM12CR Master Differential Installation Kit provides the components needed to install a compatible Eaton differential or replace the ring and pinion in select GM rear axles. Designed for GM 8.875-inch applications, this kit supports differentials with 30- or 33-spline axles and a 30-spline pinion using standard rotation. Supplying the required installation components in one package helps simplify the repair process and supports proper differential setup.

Eaton uses premium bearings and quality components to promote long service life, dependable operation, and quiet performance when installed according to the manufacturer's procedures. The kit is configured for rear applications with 12 cover bolts and 12 ring gear bolts. Always consult the Eaton application guide and verify axle, differential, spline, bolt, and rotation specifications before installation.

• Vehicle Fitment: Fits select 1964–1972 applications, including 1970–1972 Chevrolet Camaro, 1969 Chevrolet Nova, and 1971–1972 Pontiac Firebird and GTO models.
• Compatible Eaton Applications: For Eaton 187C197A, 187S196A, 913A555, 914A576, 914A575, 19554-010, and 19555-010 applications.
• Installation Guidance: Confirm fitment and installation requirements using the Eaton application guide before beginning work.

Built for professional drivetrain service and restoration applications, the Eaton K-GM12CR helps provide a complete foundation for installing a compatible Eaton differential or setting up replacement ring-and-pinion components.

Features:

• Complete installation package: Includes the necessary components to install a compatible Eaton differential or replace the ring and pinion.
• Premium bearing construction: Eaton premium bearings support long service life and quiet differential operation.
• GM 8.875-inch rear axle compatibility: Designed for select rear applications using the specified GM axle configuration.
• Broad application coverage: Supports 30- and 33-spline axle configurations with a 30-spline pinion and standard rotation.

Fitments:
1964 Buick Wildcat Base
1964 Chevrolet Bel Air Base
1964 Chevrolet Biscayne Base
1964 Chevrolet Chevelle Base
1964 Chevrolet Chevelle SS
1964 Chevrolet Chevy II Base
1964 Chevrolet Chevy II Nova
1964 Chevrolet Chevy II Nova SS
1964 Chevrolet Impala Base
1964 Chevrolet Impala SS
1964 Chevrolet Malibu Base
1965 Buick Wildcat Base
1965 Buick Wildcat Custom
1965 Buick Wildcat Deluxe
1965 Chevrolet Bel Air Base
1965 Chevrolet Biscayne Base
1965 Chevrolet Chevelle Base
1965 Chevrolet Chevelle Deluxe
1965 Chevrolet Chevelle SS
1965 Chevrolet Chevy II Base
1965 Chevrolet Chevy II Nova
1965 Chevrolet Chevy II Nova SS
1965 Chevrolet El Camino Base
1965 Chevrolet Impala Base
1965 Chevrolet Impala SS
1965 Chevrolet Malibu Base
1966 Buick Wildcat Base
1966 Buick Wildcat Custom
1966 Buick Wildcat Gran Sport
1966 Chevrolet Bel Air Base
1966 Chevrolet Biscayne Base
1966 Chevrolet Caprice Base
1966 Chevrolet Chevelle Base
1966 Chevrolet Chevelle Deluxe
1966 Chevrolet Chevelle SS
1966 Chevrolet Chevy II Base
1966 Chevrolet Chevy II Nova
1966 Chevrolet Chevy II Nova SS
1966 Chevrolet El Camino Base
1966 Chevrolet Impala Base
1966 Chevrolet Impala SS
1966 Chevrolet Malibu Base
1967 Buick Wildcat Base
1967 Buick Wildcat Custom
1967 Chevrolet Bel Air Base
1967 Chevrolet Biscayne Base
1967 Chevrolet Camaro Base
1967 Chevrolet Camaro RS
1967 Chevrolet Camaro SS
1967 Chevrolet Camaro Z28
1967 Chevrolet Caprice Base
1967 Chevrolet Chevelle 300
1967 Chevrolet Chevelle 300 Deluxe
1967 Chevrolet Chevelle Base
1967 Chevrolet Chevelle Concours
1967 Chevrolet Chevelle Deluxe
1967 Chevrolet Chevelle SS
1967 Chevrolet Chevy II Base
1967 Chevrolet Chevy II Nova
1967 Chevrolet Chevy II Nova SS
1967 Chevrolet El Camino Base
1967 Chevrolet Impala Base
1967 Chevrolet Impala SS
1967 Chevrolet Malibu Base
1968 Buick Wildcat Base
1968 Buick Wildcat Custom
1968 Chevrolet Bel Air Base
1968 Chevrolet Biscayne Base
1968 Chevrolet Camaro Base
1968 Chevrolet Camaro RS
1968 Chevrolet Camaro SS
1968 Chevrolet Camaro Z28
1968 Chevrolet Caprice Base
1968 Chevrolet Chevelle 300
1968 Chevrolet Chevelle 300 Deluxe
1968 Chevrolet Chevelle Base
1968 Chevrolet Chevelle Concours
1968 Chevrolet Chevelle Malibu
1968 Chevrolet Chevelle Nomad
1968 Chevrolet Chevelle SS
1968 Chevrolet Chevy II Nova
1968 Chevrolet El Camino Base
1968 Chevrolet El Camino Custom
1968 Chevrolet El Camino SS
1968 Chevrolet Impala Base
1969 Buick Wildcat Base
1969 Buick Wildcat Custom
1969 Chevrolet Bel Air Base
1969 Chevrolet Biscayne Base
1969 Chevrolet Camaro Base
1969 Chevrolet Camaro RS
1969 Chevrolet Camaro SS
1969 Chevrolet Camaro Z28
1969 Chevrolet Caprice Base
1969 Chevrolet Chevelle 300 Deluxe
1969 Chevrolet Chevelle Concours
1969 Chevrolet Chevelle Concours Estate
1969 Chevrolet Chevelle Greenbrier
1969 Chevrolet Chevelle Malibu
1969 Chevrolet Chevelle Nomad
1969 Chevrolet Chevelle SS
1969 Chevrolet El Camino Base
1969 Chevrolet El Camino Custom
1969 Chevrolet El Camino SS
1969 Chevrolet Impala Base
1969 Chevrolet Nova Base
1969 Pontiac Firebird Trans Am
1970 Buick Wildcat Custom
1970 Chevrolet Bel Air Base
1970 Chevrolet Biscayne Base
1970 Chevrolet Camaro Base
1970 Chevrolet Camaro RS
1970 Chevrolet Camaro SS
1970 Chevrolet Camaro Z28
1970 Chevrolet Caprice Base
1970 Chevrolet Chevelle Base
1970 Chevrolet Chevelle Concours
1970 Chevrolet Chevelle Concours Estate
1970 Chevrolet Chevelle Greenbrier
1970 Chevrolet Chevelle Malibu
1970 Chevrolet Chevelle Nomad
1970 Chevrolet Chevelle SS
1970 Chevrolet El Camino Base
1970 Chevrolet El Camino Custom
1970 Chevrolet El Camino SS
1970 Chevrolet Impala Base
1970 Chevrolet Monte Carlo Base
1970 Chevrolet Nova Base
1970 Pontiac Firebird Trans Am
1970 Pontiac GTO Base
1970 Pontiac GTO The Judge
1971 Chevrolet Bel Air Base
1971 Chevrolet Biscayne Base
1971 Chevrolet Camaro Base
1971 Chevrolet Camaro RS
1971 Chevrolet Camaro SS
1971 Chevrolet Camaro Z28
1971 Chevrolet Chevelle Base
1971 Chevrolet Chevelle Concours
1971 Chevrolet Chevelle Concours Estate
1971 Chevrolet Chevelle Greenbrier
1971 Chevrolet Chevelle Malibu
1971 Chevrolet Chevelle Nomad
1971 Chevrolet Chevelle SS
1971 Chevrolet El Camino Base
1971 Chevrolet El Camino Custom
1971 Chevrolet El Camino SS
1971 Chevrolet Impala Base
1971 Chevrolet Monte Carlo Base
1971 Chevrolet Nova Base
1971 Pontiac Firebird Trans Am
1971 Pontiac GTO Base
1971 Pontiac GTO The Judge
1972 Chevrolet Bel Air Base
1972 Chevrolet Biscayne Base
1972 Chevrolet Camaro Base
1972 Chevrolet Camaro RS
1972 Chevrolet Camaro SS
1972 Chevrolet Camaro Z28
1972 Chevrolet Chevelle Base
1972 Chevrolet Chevelle Concours
1972 Chevrolet Chevelle Concours Estate
1972 Chevrolet Chevelle Greenbrier
1972 Chevrolet Chevelle Malibu
1972 Chevrolet Chevelle Nomad
1972 Chevrolet Chevelle SS
1972 Chevrolet El Camino Base
1972 Chevrolet El Camino Custom
1972 Chevrolet El Camino SS
1972 Chevrolet Impala Base
1972 Chevrolet Monte Carlo Base
1972 Chevrolet Nova Base
1972 Pontiac Firebird Trans Am
1972 Pontiac GTO Base

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: false
Units Per Sku: 1