Yukon Gear GM 8.5in Rear Differential Minor Install Kit — Fits 1970-1975 Buick, Chevrolet, Oldsmobile, Pontiac

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SKU: YUKMK GM8.5
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Yukon Gear & Axle

Yukon Gear & Axle is the off-road and truck differential expert — gear sets, lockers, axle shafts, and complete axle assemblies for Dana 30, Dana 44, Dana 60, and modern AAM axles. The trusted source for rock-crawler and overland gear changes.

Watch in action

Yukon Gear GM 8.5" Rear Differential Minor Install Kit

Ensure a precise and reliable gear change with the Yukon Gear Minor Install Kit, specifically designed for GM 8.5-inch rear differentials. This kit offers a cost-effective solution for gear installations where existing bearings are in good condition and can be reused. Each component is manufactured to high standards, guaranteeing a smooth and accurate setup for your differential.

Key Components Included:

  • Pinion Seal: High-quality seal to prevent lubricant leaks.
  • Crush Sleeve: If applicable, ensures proper pinion bearing preload.
  • Shim Kit: Comprehensive set of shims for precise gear mesh adjustment.
  • Marking Compound & Brush: For accurate pattern checking of gear teeth.
  • Supershims: Included for enhanced adjustability and performance.

This kit is ideal for a wide range of vehicles, including Buick Apollo (1973-1975), Chevrolet Camaro (1970-1975), Chevrolet El Camino (1971-1974), Chevrolet Impala (1971-1974), Oldsmobile Cutlass (1973-1974), and Pontiac Firebird (1970-1974), among others. By using this kit, you ensure that your differential is set up correctly, leading to quieter operation and longer component life.

Trust Yukon Gear & Axle for all your drivetrain needs. Get your differential back in top shape with this essential installation kit, available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1973-1975 Buick Apollo Base
1975 Buick Apollo SR
1971-1974 Buick Electra 225
1971-1974 Buick Electra 225 Custom
1973 Buick Electra Base
1974 Buick Electra 225 Limited
1975 Buick Electra Custom
1975-1989 Buick Electra Limited
1976-1979 Buick Electra 225
1978-1989 Buick Electra Park Avenue
1980-1989 Buick Electra Estate Wagon
1985-1989 Buick Electra T-Type
1989 Buick Electra Park Avenue Ultra
1973-1987 Buick Regal Base
1976-1977 Buick Regal SR
1978-1982 Buick Regal Sport
1978-1987 Buick Regal Limited
1982 Buick Regal Limited Turbo
1982-1983 Buick Regal Estate Wagon
1983-1986 Buick Regal T-Type
1984-1987 Buick Regal Grand National
1987 Buick Regal GNX
1975 Buick Riviera GS
1975-1978 Buick Riviera Base
1976 Buick Riviera Sport
1976 Buick Riviera SR
1978 Buick Riviera LXXV Anniversary Edition
1970 Buick Skylark 350
1970-1972 Buick Skylark Base
1970-1972 Buick Skylark Custom
1972 Buick Skylark 350
1975-1977 Buick Skylark SR
1975-1979 Buick Skylark Base
1976-1979 Buick Skylark S
1978 Buick Skylark Sport
1978-1979 Buick Skylark Custom
1999-2000 Cadillac Escalade Base
1970-1975 Chevrolet Bel Air Base
1987 Chevrolet Blazer Custom Deluxe
1987-1994 Chevrolet Blazer Silverado
1988-1991 Chevrolet Blazer Scottsdale
1992-1993 Chevrolet Blazer Cheyenne
1994 Chevrolet Blazer Silverado Sport
1994-1999 Chevrolet Blazer Base
1995-2000 Chevrolet Blazer LT
1996-2000 Chevrolet Blazer LS
1999-2000 Chevrolet Blazer Trailblazer
1979-1980 Chevrolet C10 Big Ten
1979-1980 Chevrolet C10 Custom Deluxe
1979-1981 Chevrolet C10 Cheyenne
1979-1986 Chevrolet C10 Scottsdale
1979-1986 Chevrolet C10 Silverado
1981 Chevrolet C10 Deluxe
1981-1986 Chevrolet C10 Custom
1979-1980 Chevrolet C10 Suburban Silverado
1979-1980 Chevrolet C10 Suburban Custom Deluxe
1979-1980 Chevrolet C10 Suburban Scottsdale
1981 Chevrolet C10 Suburban Deluxe
1981-1986 Chevrolet C10 Suburban Custom
1982 Chevrolet C10 Suburban Scottsdale

…and 293 additional fitments. Contact us to confirm yours.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Yukon Gear & Axle

Yukon Gear & Axle is the off-road and truck differential expert — gear sets, lockers, axle shafts, and complete axle assemblies for Dana 30, Dana 44, Dana 60, and modern AAM axles. The trusted source for rock-crawler and overland gear changes.

Watch in action

Yukon Gear GM 8.5" Rear Differential Minor Install Kit

Ensure a precise and reliable gear change with the Yukon Gear Minor Install Kit, specifically designed for GM 8.5-inch rear differentials. This kit offers a cost-effective solution for gear installations where existing bearings are in good condition and can be reused. Each component is manufactured to high standards, guaranteeing a smooth and accurate setup for your differential.

Key Components Included:

  • Pinion Seal: High-quality seal to prevent lubricant leaks.
  • Crush Sleeve: If applicable, ensures proper pinion bearing preload.
  • Shim Kit: Comprehensive set of shims for precise gear mesh adjustment.
  • Marking Compound & Brush: For accurate pattern checking of gear teeth.
  • Supershims: Included for enhanced adjustability and performance.

This kit is ideal for a wide range of vehicles, including Buick Apollo (1973-1975), Chevrolet Camaro (1970-1975), Chevrolet El Camino (1971-1974), Chevrolet Impala (1971-1974), Oldsmobile Cutlass (1973-1974), and Pontiac Firebird (1970-1974), among others. By using this kit, you ensure that your differential is set up correctly, leading to quieter operation and longer component life.

Trust Yukon Gear & Axle for all your drivetrain needs. Get your differential back in top shape with this essential installation kit, available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1973-1975 Buick Apollo Base
1975 Buick Apollo SR
1971-1974 Buick Electra 225
1971-1974 Buick Electra 225 Custom
1973 Buick Electra Base
1974 Buick Electra 225 Limited
1975 Buick Electra Custom
1975-1989 Buick Electra Limited
1976-1979 Buick Electra 225
1978-1989 Buick Electra Park Avenue
1980-1989 Buick Electra Estate Wagon
1985-1989 Buick Electra T-Type
1989 Buick Electra Park Avenue Ultra
1973-1987 Buick Regal Base
1976-1977 Buick Regal SR
1978-1982 Buick Regal Sport
1978-1987 Buick Regal Limited
1982 Buick Regal Limited Turbo
1982-1983 Buick Regal Estate Wagon
1983-1986 Buick Regal T-Type
1984-1987 Buick Regal Grand National
1987 Buick Regal GNX
1975 Buick Riviera GS
1975-1978 Buick Riviera Base
1976 Buick Riviera Sport
1976 Buick Riviera SR
1978 Buick Riviera LXXV Anniversary Edition
1970 Buick Skylark 350
1970-1972 Buick Skylark Base
1970-1972 Buick Skylark Custom
1972 Buick Skylark 350
1975-1977 Buick Skylark SR
1975-1979 Buick Skylark Base
1976-1979 Buick Skylark S
1978 Buick Skylark Sport
1978-1979 Buick Skylark Custom
1999-2000 Cadillac Escalade Base
1970-1975 Chevrolet Bel Air Base
1987 Chevrolet Blazer Custom Deluxe
1987-1994 Chevrolet Blazer Silverado
1988-1991 Chevrolet Blazer Scottsdale
1992-1993 Chevrolet Blazer Cheyenne
1994 Chevrolet Blazer Silverado Sport
1994-1999 Chevrolet Blazer Base
1995-2000 Chevrolet Blazer LT
1996-2000 Chevrolet Blazer LS
1999-2000 Chevrolet Blazer Trailblazer
1979-1980 Chevrolet C10 Big Ten
1979-1980 Chevrolet C10 Custom Deluxe
1979-1981 Chevrolet C10 Cheyenne
1979-1986 Chevrolet C10 Scottsdale
1979-1986 Chevrolet C10 Silverado
1981 Chevrolet C10 Deluxe
1981-1986 Chevrolet C10 Custom
1979-1980 Chevrolet C10 Suburban Silverado
1979-1980 Chevrolet C10 Suburban Custom Deluxe
1979-1980 Chevrolet C10 Suburban Scottsdale
1981 Chevrolet C10 Suburban Deluxe
1981-1986 Chevrolet C10 Suburban Custom
1982 Chevrolet C10 Suburban Scottsdale

…and 293 additional fitments. Contact us to confirm yours.

Product Details

Product Description

About Yukon Gear & Axle

Yukon Gear & Axle is the off-road and truck differential expert — gear sets, lockers, axle shafts, and complete axle assemblies for Dana 30, Dana 44, Dana 60, and modern AAM axles. The trusted source for rock-crawler and overland gear changes.

Watch in action

Yukon Gear GM 8.5" Rear Differential Minor Install Kit

Ensure a precise and reliable gear change with the Yukon Gear Minor Install Kit, specifically designed for GM 8.5-inch rear differentials. This kit offers a cost-effective solution for gear installations where existing bearings are in good condition and can be reused. Each component is manufactured to high standards, guaranteeing a smooth and accurate setup for your differential.

Key Components Included:

  • Pinion Seal: High-quality seal to prevent lubricant leaks.
  • Crush Sleeve: If applicable, ensures proper pinion bearing preload.
  • Shim Kit: Comprehensive set of shims for precise gear mesh adjustment.
  • Marking Compound & Brush: For accurate pattern checking of gear teeth.
  • Supershims: Included for enhanced adjustability and performance.

This kit is ideal for a wide range of vehicles, including Buick Apollo (1973-1975), Chevrolet Camaro (1970-1975), Chevrolet El Camino (1971-1974), Chevrolet Impala (1971-1974), Oldsmobile Cutlass (1973-1974), and Pontiac Firebird (1970-1974), among others. By using this kit, you ensure that your differential is set up correctly, leading to quieter operation and longer component life.

Trust Yukon Gear & Axle for all your drivetrain needs. Get your differential back in top shape with this essential installation kit, available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1973-1975 Buick Apollo Base
1975 Buick Apollo SR
1971-1974 Buick Electra 225
1971-1974 Buick Electra 225 Custom
1973 Buick Electra Base
1974 Buick Electra 225 Limited
1975 Buick Electra Custom
1975-1989 Buick Electra Limited
1976-1979 Buick Electra 225
1978-1989 Buick Electra Park Avenue
1980-1989 Buick Electra Estate Wagon
1985-1989 Buick Electra T-Type
1989 Buick Electra Park Avenue Ultra
1973-1987 Buick Regal Base
1976-1977 Buick Regal SR
1978-1982 Buick Regal Sport
1978-1987 Buick Regal Limited
1982 Buick Regal Limited Turbo
1982-1983 Buick Regal Estate Wagon
1983-1986 Buick Regal T-Type
1984-1987 Buick Regal Grand National
1987 Buick Regal GNX
1975 Buick Riviera GS
1975-1978 Buick Riviera Base
1976 Buick Riviera Sport
1976 Buick Riviera SR
1978 Buick Riviera LXXV Anniversary Edition
1970 Buick Skylark 350
1970-1972 Buick Skylark Base
1970-1972 Buick Skylark Custom
1972 Buick Skylark 350
1975-1977 Buick Skylark SR
1975-1979 Buick Skylark Base
1976-1979 Buick Skylark S
1978 Buick Skylark Sport
1978-1979 Buick Skylark Custom
1999-2000 Cadillac Escalade Base
1970-1975 Chevrolet Bel Air Base
1987 Chevrolet Blazer Custom Deluxe
1987-1994 Chevrolet Blazer Silverado
1988-1991 Chevrolet Blazer Scottsdale
1992-1993 Chevrolet Blazer Cheyenne
1994 Chevrolet Blazer Silverado Sport
1994-1999 Chevrolet Blazer Base
1995-2000 Chevrolet Blazer LT
1996-2000 Chevrolet Blazer LS
1999-2000 Chevrolet Blazer Trailblazer
1979-1980 Chevrolet C10 Big Ten
1979-1980 Chevrolet C10 Custom Deluxe
1979-1981 Chevrolet C10 Cheyenne
1979-1986 Chevrolet C10 Scottsdale
1979-1986 Chevrolet C10 Silverado
1981 Chevrolet C10 Deluxe
1981-1986 Chevrolet C10 Custom
1979-1980 Chevrolet C10 Suburban Silverado
1979-1980 Chevrolet C10 Suburban Custom Deluxe
1979-1980 Chevrolet C10 Suburban Scottsdale
1981 Chevrolet C10 Suburban Deluxe
1981-1986 Chevrolet C10 Suburban Custom
1982 Chevrolet C10 Suburban Scottsdale

…and 293 additional fitments. Contact us to confirm yours.

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