Yukon Gear Positraction Internals - 8.5in GM 30 Spline

SKU: YUKYPKGM8.5-P-30
No reviews

About Yukon Gear & Axle Yukon Gear & Axle is ...Read More

Price:
Sale price$323.99
Add To Cart
×

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.

Boost Performance with Yukon Gear Positraction Internals for GM 8.5in Differentials

Maximize your General Motors vehicle's traction and performance with the Yukon Gear & Axle Positraction Internals, specifically designed for the robust 8.5-inch GM differential featuring 30-spline axles. This kit is engineered to complement Yukon Dura Grip or Eaton positraction units, offering a reliable upgrade for enhanced drivability and durability.

Key Features and Benefits:

  • Optimized for GM 8.5in Diffs: Precision-engineered for compatibility with the common GM 8.5-inch axle housing.
  • 30-Spline Axle Compatibility: Designed to fit axles with 30 splines, ensuring a secure and proper installation.
  • Superior Traction: Works with positraction units to deliver consistent power to both wheels, improving grip on various surfaces.
  • High-Quality Construction: Yukon Gear & Axle uses premium materials and advanced manufacturing techniques for exceptional strength and longevity.
  • Direct Upgrade Component: An ideal choice for upgrading existing positraction units or for custom differential builds requiring enhanced performance.

Vehicle Fitment:

This Positraction Internals kit is suitable for a wide range of GM vehicles equipped with the 8.5-inch rear axle and 30-spline axles, including models from:

  • Chevrolet (e.g., K10, K1500, C10, C1500, K5 Blazer, Suburban)
  • GMC (e.g., K1500, C1500, Suburban)
  • Buick (e.g., Electra, Regal)
  • Cadillac (e.g., Brougham)
  • Oldsmobile (e.g., Custom Cruiser)
  • Pontiac (e.g., Grand Am, Grand Prix)

Please verify specific axle and spline count for your vehicle model year. This kit is NOT compatible with factory Gov-Loc Positraction units.

Ensure your GM vehicle performs at its best, whether for work or play, with reliable and high-performance components from Yukon Gear & Axle. Experience the difference quality makes.

Find the best differential parts for your vehicle at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1980-1985 Buick Electra Limited
1980-1985 Buick Electra Park Avenue
1980-1989 Buick Electra Estate Wagon
1985 Buick Electra T-Type
2004-2005 Buick Rainier CXL Plus
2004-2007 Buick Rainier CXL
1980-1982 Buick Regal Sport
1980-1987 Buick Regal Base
1980-1987 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
1999-2000 Cadillac Escalade Base
2002-2013 Cadillac Escalade Base
2008-2013 Cadillac Escalade Platinum
2009-2013 Cadillac Escalade Hybrid
2010-2013 Cadillac Escalade Hybrid Platinum
2011-2013 Cadillac Escalade Luxury
2011-2013 Cadillac Escalade Premium
2007-2012 Chevrolet Avalanche LS
2007-2012 Chevrolet Avalanche LT
2007-2012 Chevrolet Avalanche LTZ
2013 Chevrolet Avalanche Black Diamond LS
2013 Chevrolet Avalanche Black Diamond LT
2013 Chevrolet Avalanche Black Diamond LTZ
2002-2003 Chevrolet Avalanche 1500 North Face
2002-2003 Chevrolet Avalanche 1500 On Road Edition
2002-2005 Chevrolet Avalanche 1500 Base
2002-2006 Chevrolet Avalanche 1500 Z71
2003 Chevrolet Avalanche 1500 WBH
2004-2006 Chevrolet Avalanche 1500 Z66
2005-2006 Chevrolet Avalanche 1500 LS
2005-2006 Chevrolet Avalanche 1500 LT
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 Chevrolet Blazer Base
1980 Chevrolet C10 Big Ten
1980 Chevrolet C10 Custom Deluxe
1980-1981 Chevrolet C10 Cheyenne
1980-1986 Chevrolet C10 Scottsdale
1980-1986 Chevrolet C10 Silverado
1981 Chevrolet C10 Deluxe
1981-1986 Chevrolet C10 Custom
1980 Chevrolet C10 Suburban Custom Deluxe
1980 Chevrolet C10 Suburban Scottsdale
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
1988-1998 Chevrolet C1500 Silverado
1990-1993 Chevrolet C1500 454 SS

…and 277 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.

Boost Performance with Yukon Gear Positraction Internals for GM 8.5in Differentials

Maximize your General Motors vehicle's traction and performance with the Yukon Gear & Axle Positraction Internals, specifically designed for the robust 8.5-inch GM differential featuring 30-spline axles. This kit is engineered to complement Yukon Dura Grip or Eaton positraction units, offering a reliable upgrade for enhanced drivability and durability.

Key Features and Benefits:

  • Optimized for GM 8.5in Diffs: Precision-engineered for compatibility with the common GM 8.5-inch axle housing.
  • 30-Spline Axle Compatibility: Designed to fit axles with 30 splines, ensuring a secure and proper installation.
  • Superior Traction: Works with positraction units to deliver consistent power to both wheels, improving grip on various surfaces.
  • High-Quality Construction: Yukon Gear & Axle uses premium materials and advanced manufacturing techniques for exceptional strength and longevity.
  • Direct Upgrade Component: An ideal choice for upgrading existing positraction units or for custom differential builds requiring enhanced performance.

Vehicle Fitment:

This Positraction Internals kit is suitable for a wide range of GM vehicles equipped with the 8.5-inch rear axle and 30-spline axles, including models from:

  • Chevrolet (e.g., K10, K1500, C10, C1500, K5 Blazer, Suburban)
  • GMC (e.g., K1500, C1500, Suburban)
  • Buick (e.g., Electra, Regal)
  • Cadillac (e.g., Brougham)
  • Oldsmobile (e.g., Custom Cruiser)
  • Pontiac (e.g., Grand Am, Grand Prix)

Please verify specific axle and spline count for your vehicle model year. This kit is NOT compatible with factory Gov-Loc Positraction units.

Ensure your GM vehicle performs at its best, whether for work or play, with reliable and high-performance components from Yukon Gear & Axle. Experience the difference quality makes.

Find the best differential parts for your vehicle at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1980-1985 Buick Electra Limited
1980-1985 Buick Electra Park Avenue
1980-1989 Buick Electra Estate Wagon
1985 Buick Electra T-Type
2004-2005 Buick Rainier CXL Plus
2004-2007 Buick Rainier CXL
1980-1982 Buick Regal Sport
1980-1987 Buick Regal Base
1980-1987 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
1999-2000 Cadillac Escalade Base
2002-2013 Cadillac Escalade Base
2008-2013 Cadillac Escalade Platinum
2009-2013 Cadillac Escalade Hybrid
2010-2013 Cadillac Escalade Hybrid Platinum
2011-2013 Cadillac Escalade Luxury
2011-2013 Cadillac Escalade Premium
2007-2012 Chevrolet Avalanche LS
2007-2012 Chevrolet Avalanche LT
2007-2012 Chevrolet Avalanche LTZ
2013 Chevrolet Avalanche Black Diamond LS
2013 Chevrolet Avalanche Black Diamond LT
2013 Chevrolet Avalanche Black Diamond LTZ
2002-2003 Chevrolet Avalanche 1500 North Face
2002-2003 Chevrolet Avalanche 1500 On Road Edition
2002-2005 Chevrolet Avalanche 1500 Base
2002-2006 Chevrolet Avalanche 1500 Z71
2003 Chevrolet Avalanche 1500 WBH
2004-2006 Chevrolet Avalanche 1500 Z66
2005-2006 Chevrolet Avalanche 1500 LS
2005-2006 Chevrolet Avalanche 1500 LT
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 Chevrolet Blazer Base
1980 Chevrolet C10 Big Ten
1980 Chevrolet C10 Custom Deluxe
1980-1981 Chevrolet C10 Cheyenne
1980-1986 Chevrolet C10 Scottsdale
1980-1986 Chevrolet C10 Silverado
1981 Chevrolet C10 Deluxe
1981-1986 Chevrolet C10 Custom
1980 Chevrolet C10 Suburban Custom Deluxe
1980 Chevrolet C10 Suburban Scottsdale
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
1988-1998 Chevrolet C1500 Silverado
1990-1993 Chevrolet C1500 454 SS

…and 277 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.

Boost Performance with Yukon Gear Positraction Internals for GM 8.5in Differentials

Maximize your General Motors vehicle's traction and performance with the Yukon Gear & Axle Positraction Internals, specifically designed for the robust 8.5-inch GM differential featuring 30-spline axles. This kit is engineered to complement Yukon Dura Grip or Eaton positraction units, offering a reliable upgrade for enhanced drivability and durability.

Key Features and Benefits:

  • Optimized for GM 8.5in Diffs: Precision-engineered for compatibility with the common GM 8.5-inch axle housing.
  • 30-Spline Axle Compatibility: Designed to fit axles with 30 splines, ensuring a secure and proper installation.
  • Superior Traction: Works with positraction units to deliver consistent power to both wheels, improving grip on various surfaces.
  • High-Quality Construction: Yukon Gear & Axle uses premium materials and advanced manufacturing techniques for exceptional strength and longevity.
  • Direct Upgrade Component: An ideal choice for upgrading existing positraction units or for custom differential builds requiring enhanced performance.

Vehicle Fitment:

This Positraction Internals kit is suitable for a wide range of GM vehicles equipped with the 8.5-inch rear axle and 30-spline axles, including models from:

  • Chevrolet (e.g., K10, K1500, C10, C1500, K5 Blazer, Suburban)
  • GMC (e.g., K1500, C1500, Suburban)
  • Buick (e.g., Electra, Regal)
  • Cadillac (e.g., Brougham)
  • Oldsmobile (e.g., Custom Cruiser)
  • Pontiac (e.g., Grand Am, Grand Prix)

Please verify specific axle and spline count for your vehicle model year. This kit is NOT compatible with factory Gov-Loc Positraction units.

Ensure your GM vehicle performs at its best, whether for work or play, with reliable and high-performance components from Yukon Gear & Axle. Experience the difference quality makes.

Find the best differential parts for your vehicle at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1980-1985 Buick Electra Limited
1980-1985 Buick Electra Park Avenue
1980-1989 Buick Electra Estate Wagon
1985 Buick Electra T-Type
2004-2005 Buick Rainier CXL Plus
2004-2007 Buick Rainier CXL
1980-1982 Buick Regal Sport
1980-1987 Buick Regal Base
1980-1987 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
1999-2000 Cadillac Escalade Base
2002-2013 Cadillac Escalade Base
2008-2013 Cadillac Escalade Platinum
2009-2013 Cadillac Escalade Hybrid
2010-2013 Cadillac Escalade Hybrid Platinum
2011-2013 Cadillac Escalade Luxury
2011-2013 Cadillac Escalade Premium
2007-2012 Chevrolet Avalanche LS
2007-2012 Chevrolet Avalanche LT
2007-2012 Chevrolet Avalanche LTZ
2013 Chevrolet Avalanche Black Diamond LS
2013 Chevrolet Avalanche Black Diamond LT
2013 Chevrolet Avalanche Black Diamond LTZ
2002-2003 Chevrolet Avalanche 1500 North Face
2002-2003 Chevrolet Avalanche 1500 On Road Edition
2002-2005 Chevrolet Avalanche 1500 Base
2002-2006 Chevrolet Avalanche 1500 Z71
2003 Chevrolet Avalanche 1500 WBH
2004-2006 Chevrolet Avalanche 1500 Z66
2005-2006 Chevrolet Avalanche 1500 LS
2005-2006 Chevrolet Avalanche 1500 LT
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 Chevrolet Blazer Base
1980 Chevrolet C10 Big Ten
1980 Chevrolet C10 Custom Deluxe
1980-1981 Chevrolet C10 Cheyenne
1980-1986 Chevrolet C10 Scottsdale
1980-1986 Chevrolet C10 Silverado
1981 Chevrolet C10 Deluxe
1981-1986 Chevrolet C10 Custom
1980 Chevrolet C10 Suburban Custom Deluxe
1980 Chevrolet C10 Suburban Scottsdale
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
1988-1998 Chevrolet C1500 Silverado
1990-1993 Chevrolet C1500 454 SS

…and 277 additional fitments. Contact us to confirm yours.

DRIVERS Also Bought

Recently viewed