Yukon Gear & Axle USA Standard Master Overhaul Kit for GM 8.5in HD Posi/Locker

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SKU: YUKZK GM8.5-HD
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Sale price$183.99 Regular price$190.00
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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

USA Standard Master Overhaul Kit for GM 8.5-inch HD Posi/Locker Differentials

Equip your GM vehicle for demanding performance with the USA Standard Master Overhaul Kit from Yukon Gear & Axle, specifically designed for GM 8.5-inch differentials equipped with Posi-traction or lockers. This comprehensive kit provides all the essential, high-quality installation components needed for a robust and reliable differential rebuild. Ensure your heavy-duty or performance application receives the dependable parts it requires.

Heavy-Duty Components for Enhanced Traction

  • Premium Bearings & Races: Features durable Koyo/Timken bearings and races engineered for high-torque applications and longevity.
  • Complete Small Parts Package: Includes all necessary seals, gaskets, and small hardware for a secure and professional installation.
  • Designed for Posi/Lockers: Specifically tailored for GM 8.5-inch axles with Posi-traction or aftermarket lockers, ensuring compatibility.
  • Comprehensive Coverage: USA Standard Gear meticulously designs each kit to include every necessary part for your specific differential setup.

This master overhaul kit is ideal for a wide range of GM vehicles from the 1970s through the late 1970s, including Chevrolet Camaros, Novas, Impalas, El Caminos, Caprices, and performance models from Oldsmobile and Buick. It's the perfect choice for enthusiasts and mechanics looking to enhance or restore the performance and reliability of their heavy-duty or performance-oriented GM vehicles. Trust Yukon Gear & Axle for your differential needs.

Maximize your traction and reliability. Get your USA Standard Master Overhaul Kit 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
1975-1985 Buick Electra Limited
1976-1979 Buick Electra 225
1978-1985 Buick Electra Park Avenue
1980-1989 Buick Electra Estate Wagon
1985 Buick Electra T-Type
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 Custom
1970-1972 Buick Skylark Base
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
1970-1972 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 Base
1994 Chevrolet Blazer Silverado Sport
1979-1980 Chevrolet C10 Custom Deluxe
1979-1980 Chevrolet C10 Big Ten
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 Custom Deluxe
1979-1980 Chevrolet C10 Suburban Scottsdale
1979-1980 Chevrolet C10 Suburban Silverado
1981 Chevrolet C10 Suburban Deluxe
1981-1986 Chevrolet C10 Suburban Custom
1982 Chevrolet C10 Suburban Scottsdale
1982-1986 Chevrolet C10 Suburban Silverado
1984-1986 Chevrolet C10 Suburban Scottsdale
1988-1992 Chevrolet C1500 Scottsdale
1988-1998 Chevrolet C1500 Cheyenne

…and 289 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

USA Standard Master Overhaul Kit for GM 8.5-inch HD Posi/Locker Differentials

Equip your GM vehicle for demanding performance with the USA Standard Master Overhaul Kit from Yukon Gear & Axle, specifically designed for GM 8.5-inch differentials equipped with Posi-traction or lockers. This comprehensive kit provides all the essential, high-quality installation components needed for a robust and reliable differential rebuild. Ensure your heavy-duty or performance application receives the dependable parts it requires.

Heavy-Duty Components for Enhanced Traction

  • Premium Bearings & Races: Features durable Koyo/Timken bearings and races engineered for high-torque applications and longevity.
  • Complete Small Parts Package: Includes all necessary seals, gaskets, and small hardware for a secure and professional installation.
  • Designed for Posi/Lockers: Specifically tailored for GM 8.5-inch axles with Posi-traction or aftermarket lockers, ensuring compatibility.
  • Comprehensive Coverage: USA Standard Gear meticulously designs each kit to include every necessary part for your specific differential setup.

This master overhaul kit is ideal for a wide range of GM vehicles from the 1970s through the late 1970s, including Chevrolet Camaros, Novas, Impalas, El Caminos, Caprices, and performance models from Oldsmobile and Buick. It's the perfect choice for enthusiasts and mechanics looking to enhance or restore the performance and reliability of their heavy-duty or performance-oriented GM vehicles. Trust Yukon Gear & Axle for your differential needs.

Maximize your traction and reliability. Get your USA Standard Master Overhaul Kit 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
1975-1985 Buick Electra Limited
1976-1979 Buick Electra 225
1978-1985 Buick Electra Park Avenue
1980-1989 Buick Electra Estate Wagon
1985 Buick Electra T-Type
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 Custom
1970-1972 Buick Skylark Base
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
1970-1972 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 Base
1994 Chevrolet Blazer Silverado Sport
1979-1980 Chevrolet C10 Custom Deluxe
1979-1980 Chevrolet C10 Big Ten
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 Custom Deluxe
1979-1980 Chevrolet C10 Suburban Scottsdale
1979-1980 Chevrolet C10 Suburban Silverado
1981 Chevrolet C10 Suburban Deluxe
1981-1986 Chevrolet C10 Suburban Custom
1982 Chevrolet C10 Suburban Scottsdale
1982-1986 Chevrolet C10 Suburban Silverado
1984-1986 Chevrolet C10 Suburban Scottsdale
1988-1992 Chevrolet C1500 Scottsdale
1988-1998 Chevrolet C1500 Cheyenne

…and 289 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

USA Standard Master Overhaul Kit for GM 8.5-inch HD Posi/Locker Differentials

Equip your GM vehicle for demanding performance with the USA Standard Master Overhaul Kit from Yukon Gear & Axle, specifically designed for GM 8.5-inch differentials equipped with Posi-traction or lockers. This comprehensive kit provides all the essential, high-quality installation components needed for a robust and reliable differential rebuild. Ensure your heavy-duty or performance application receives the dependable parts it requires.

Heavy-Duty Components for Enhanced Traction

  • Premium Bearings & Races: Features durable Koyo/Timken bearings and races engineered for high-torque applications and longevity.
  • Complete Small Parts Package: Includes all necessary seals, gaskets, and small hardware for a secure and professional installation.
  • Designed for Posi/Lockers: Specifically tailored for GM 8.5-inch axles with Posi-traction or aftermarket lockers, ensuring compatibility.
  • Comprehensive Coverage: USA Standard Gear meticulously designs each kit to include every necessary part for your specific differential setup.

This master overhaul kit is ideal for a wide range of GM vehicles from the 1970s through the late 1970s, including Chevrolet Camaros, Novas, Impalas, El Caminos, Caprices, and performance models from Oldsmobile and Buick. It's the perfect choice for enthusiasts and mechanics looking to enhance or restore the performance and reliability of their heavy-duty or performance-oriented GM vehicles. Trust Yukon Gear & Axle for your differential needs.

Maximize your traction and reliability. Get your USA Standard Master Overhaul Kit 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
1975-1985 Buick Electra Limited
1976-1979 Buick Electra 225
1978-1985 Buick Electra Park Avenue
1980-1989 Buick Electra Estate Wagon
1985 Buick Electra T-Type
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 Custom
1970-1972 Buick Skylark Base
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
1970-1972 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 Base
1994 Chevrolet Blazer Silverado Sport
1979-1980 Chevrolet C10 Custom Deluxe
1979-1980 Chevrolet C10 Big Ten
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 Custom Deluxe
1979-1980 Chevrolet C10 Suburban Scottsdale
1979-1980 Chevrolet C10 Suburban Silverado
1981 Chevrolet C10 Suburban Deluxe
1981-1986 Chevrolet C10 Suburban Custom
1982 Chevrolet C10 Suburban Scottsdale
1982-1986 Chevrolet C10 Suburban Silverado
1984-1986 Chevrolet C10 Suburban Scottsdale
1988-1992 Chevrolet C1500 Scottsdale
1988-1998 Chevrolet C1500 Cheyenne

…and 289 additional fitments. Contact us to confirm yours.

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