Yukon Gear High Performance Ring & Pinion Gear Set for GM 8.5in & 8.6in Differentials - 3.73 Ratio

SKU: YUKYG GM8.5-373
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Sale price$399.99
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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 High Performance Ring & Pinion Set for GM 8.5in & 8.6in Differentials

Optimize Performance with the 3.73 Gear Ratio

Enhance your vehicle's drivetrain capabilities with the Yukon Gear High Performance Ring & Pinion Gear Set, specifically designed for GM 8.5-inch and 8.6-inch rear differentials. This set features a popular 3.73 gear ratio, providing an excellent compromise for drivers who need improved torque for towing and managing larger tires, while still maintaining reasonable highway performance. Yukon Gear & Axle is a leader in drivetrain components, known for its advanced design and stringent quality control.

Engineered for Power and Longevity

  • Precision Engineering: Manufactured to exact OEM specifications, ensuring a perfect fit and optimal gear engagement for smooth, quiet operation.
  • High-Strength Steel: Utilizes premium steel alloys for both the ring and pinion gears, offering superior durability and resistance to extreme loads.
  • Advanced Surface Treatment: Features a specialized gear tooth surface finish designed to minimize friction and heat buildup, crucial for high-torque applications and extended gear life.
  • Versatile Performance: The 3.73 ratio is a favorite among truck and SUV owners for its ability to handle increased demands like towing or larger tire upgrades.
  • Broad Vehicle Compatibility: Fits a wide range of Chevrolet and GMC vehicles from the early 1980s, including C10, K10, Caprice, Camaro, Jimmy, and more.

Whether you're upgrading for enhanced towing capacity or preparing for larger tires, this Yukon Gear set delivers the robust performance and reliability you expect. Benefit from Yukon's industry-leading quality, backed by a 1-year warranty against manufacturing defects. Get the ultimate drivetrain upgrade 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 275 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 High Performance Ring & Pinion Set for GM 8.5in & 8.6in Differentials

Optimize Performance with the 3.73 Gear Ratio

Enhance your vehicle's drivetrain capabilities with the Yukon Gear High Performance Ring & Pinion Gear Set, specifically designed for GM 8.5-inch and 8.6-inch rear differentials. This set features a popular 3.73 gear ratio, providing an excellent compromise for drivers who need improved torque for towing and managing larger tires, while still maintaining reasonable highway performance. Yukon Gear & Axle is a leader in drivetrain components, known for its advanced design and stringent quality control.

Engineered for Power and Longevity

  • Precision Engineering: Manufactured to exact OEM specifications, ensuring a perfect fit and optimal gear engagement for smooth, quiet operation.
  • High-Strength Steel: Utilizes premium steel alloys for both the ring and pinion gears, offering superior durability and resistance to extreme loads.
  • Advanced Surface Treatment: Features a specialized gear tooth surface finish designed to minimize friction and heat buildup, crucial for high-torque applications and extended gear life.
  • Versatile Performance: The 3.73 ratio is a favorite among truck and SUV owners for its ability to handle increased demands like towing or larger tire upgrades.
  • Broad Vehicle Compatibility: Fits a wide range of Chevrolet and GMC vehicles from the early 1980s, including C10, K10, Caprice, Camaro, Jimmy, and more.

Whether you're upgrading for enhanced towing capacity or preparing for larger tires, this Yukon Gear set delivers the robust performance and reliability you expect. Benefit from Yukon's industry-leading quality, backed by a 1-year warranty against manufacturing defects. Get the ultimate drivetrain upgrade 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 275 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 High Performance Ring & Pinion Set for GM 8.5in & 8.6in Differentials

Optimize Performance with the 3.73 Gear Ratio

Enhance your vehicle's drivetrain capabilities with the Yukon Gear High Performance Ring & Pinion Gear Set, specifically designed for GM 8.5-inch and 8.6-inch rear differentials. This set features a popular 3.73 gear ratio, providing an excellent compromise for drivers who need improved torque for towing and managing larger tires, while still maintaining reasonable highway performance. Yukon Gear & Axle is a leader in drivetrain components, known for its advanced design and stringent quality control.

Engineered for Power and Longevity

  • Precision Engineering: Manufactured to exact OEM specifications, ensuring a perfect fit and optimal gear engagement for smooth, quiet operation.
  • High-Strength Steel: Utilizes premium steel alloys for both the ring and pinion gears, offering superior durability and resistance to extreme loads.
  • Advanced Surface Treatment: Features a specialized gear tooth surface finish designed to minimize friction and heat buildup, crucial for high-torque applications and extended gear life.
  • Versatile Performance: The 3.73 ratio is a favorite among truck and SUV owners for its ability to handle increased demands like towing or larger tire upgrades.
  • Broad Vehicle Compatibility: Fits a wide range of Chevrolet and GMC vehicles from the early 1980s, including C10, K10, Caprice, Camaro, Jimmy, and more.

Whether you're upgrading for enhanced towing capacity or preparing for larger tires, this Yukon Gear set delivers the robust performance and reliability you expect. Benefit from Yukon's industry-leading quality, backed by a 1-year warranty against manufacturing defects. Get the ultimate drivetrain upgrade 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 275 additional fitments. Contact us to confirm yours.

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