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Yukon Gear High Performance Gear Set For GM 8.5in & 8.6in in a 4.88 Ratio is the exact Yukon Gear & Axle final drive gears identified by manufacturer part number YG GM8.5-488. Match the part number, vehicle, axle housing, differential, spline count, gear ratio, carrier break, position, dimensions, and intended use before ordering.
Key Features
- Yukon machines the YG GM8.5-488 from premium alloy steel with advanced tooth geometry validated through two dedicated in-house quality labs.
- A: The YG GM8.5-488 is ideal for lifted builds running 35-to-37-inch tires, where a numerically high gear ratio is needed to restore throttle response and towing capacity lost from the tire oversize.
- A 4.88 ratio provides substantial low-end torque multiplication for lifted trucks running 35-to-37-inch tires who need aggressive off-road performance and towing capability.
- The YG GM8.5-488 is designed to fit both the GM 8.5-inch and 8.6-inch 10-bolt carriers which share the same gear dimensions.
- The Y.E.S. plan provides lifetime no-questions-asked coverage.
- Press the new ring gear onto the correct high-ratio carrier and torque ring gear bolts in a cross pattern to specification.
Fitment
Verified catalog applications: 1980-1981 Chevrolet Camaro, 1980-1983 Chevrolet Malibu, 1980-1985 Chevrolet Impala, 1980-1985 GMC K1500 Suburban, 1980-1986 Chevrolet C10, 1980-1986 Chevrolet C10 Suburban, 1980-1986 Chevrolet K10, 1980-1986 Chevrolet K10 Suburban, 1980-1986 Chevrolet K20, 1980-1986 Chevrolet K20 Suburban, 1980-1986 Chevrolet K5 Blazer, 1980-1986 GMC C1500, 1980-1986 GMC C1500 Suburban, 1980-1986 GMC K1500, 1980-1987 Buick Regal, 1980-1988 Chevrolet Monte Carlo, 1980-1989 Buick Electra, 1980-1995 Chevrolet G10, 1980-1995 Chevrolet G20, 1980-1995 GMC G1500, 1980-1995 GMC G2500, 1980-1996 Chevrolet Caprice, 1987-1988 Chevrolet R10 Suburban, 1987-1988 Chevrolet Suburban, 1987-1988 Chevrolet V20 Suburban, 1987-1994 Chevrolet Blazer, 1987 Chevrolet R10, 1987 Chevrolet V10, 1987 Chevrolet V20, 1988-1999 Chevrolet C1500, 1988-1999 Chevrolet K1500, 1988-1999 GMC C1500, 1988-1999 GMC K1500, 1989-1990 Chevrolet K2500, 1989-1991 Chevrolet R1500 Suburban, 1989-1991 Chevrolet V1500 Suburban, 1989-1991 Chevrolet V2500 Suburban, 1989-2000 Chevrolet C2500, 1992-1999 Chevrolet C1500 Suburban, 1992-1999 Chevrolet K1500 Suburban, 1992-1999 GMC C1500 Suburban, 1992-1999 GMC K1500 Suburban, 1994-1996 Chevrolet Impala, 1994-2004 Chevrolet S10, 1994 GMC Jimmy, 1995-1996 Chevrolet Monte Carlo, 1995-2017 Chevrolet Tahoe, 1996-1998 Chevrolet Express 2500, 1996-2014 Chevrolet Express 1500, 1997-2000 GMC C2500, 1999-2000 Cadillac Escalade, 1999-2017 Chevrolet Silverado 1500, 2000-2014 Chevrolet Suburban 1500, 2002-2006 Chevrolet Avalanche 1500, 2002-2006 Chevrolet Trailblazer EXT, 2002-2009 Chevrolet Trailblazer, 2002-2009 GMC Envoy, 2002-2013 Cadillac Escalade, 2003-2006 Chevrolet SSR, 2004-2007 Buick Rainier, 2004-2012 Chevrolet Colorado, 2004-2012 GMC Canyon, 2007-2013 Chevrolet Avalanche, 2007 Chevrolet Silverado 1500 Classic. Confirm axle housing, differential, spline count, gear ratio, carrier break, position, and manufacturer exclusions for the exact vehicle before ordering.
| Years | Make | Model |
|---|---|---|
| 1980-1981 | Chevrolet | Camaro |
| 1980-1983 | Chevrolet | Malibu |
| 1980-1985 | Chevrolet | Impala |
| 1980-1985 | GMC | K1500 Suburban |
| 1980-1986 | Chevrolet | C10 |
| 1980-1986 | Chevrolet | C10 Suburban |
| 1980-1986 | Chevrolet | K10 |
| 1980-1986 | Chevrolet | K10 Suburban |
| 1980-1986 | Chevrolet | K20 |
| 1980-1986 | Chevrolet | K20 Suburban |
| 1980-1986 | Chevrolet | K5 Blazer |
| 1980-1986 | GMC | C1500 |
| 1980-1986 | GMC | C1500 Suburban |
| 1980-1986 | GMC | K1500 |
| 1980-1987 | Buick | Regal |
| 1980-1988 | Chevrolet | Monte Carlo |
| 1980-1989 | Buick | Electra |
| 1980-1995 | Chevrolet | G10 |
| 1980-1995 | Chevrolet | G20 |
| 1980-1995 | GMC | G1500 |
| 1980-1995 | GMC | G2500 |
| 1980-1996 | Chevrolet | Caprice |
| 1987-1988 | Chevrolet | R10 Suburban |
| 1987-1988 | Chevrolet | Suburban |
| 1987-1988 | Chevrolet | V20 Suburban |
| 1987-1994 | Chevrolet | Blazer |
| 1987 | Chevrolet | R10 |
| 1987 | Chevrolet | V10 |
| 1987 | Chevrolet | V20 |
| 1988-1999 | Chevrolet | C1500 |
| 1988-1999 | Chevrolet | K1500 |
| 1988-1999 | GMC | C1500 |
| 1988-1999 | GMC | K1500 |
| 1989-1990 | Chevrolet | K2500 |
| 1989-1991 | Chevrolet | R1500 Suburban |
| 1989-1991 | Chevrolet | V1500 Suburban |
| 1989-1991 | Chevrolet | V2500 Suburban |
| 1989-2000 | Chevrolet | C2500 |
| 1992-1999 | Chevrolet | C1500 Suburban |
| 1992-1999 | Chevrolet | K1500 Suburban |
| 1992-1999 | GMC | C1500 Suburban |
| 1992-1999 | GMC | K1500 Suburban |
| 1994-1996 | Chevrolet | Impala |
| 1994-2004 | Chevrolet | S10 |
| 1994 | GMC | Jimmy |
| 1995-1996 | Chevrolet | Monte Carlo |
| 1995-2017 | Chevrolet | Tahoe |
| 1996-1998 | Chevrolet | Express 2500 |
| 1996-2014 | Chevrolet | Express 1500 |
| 1997-2000 | GMC | C2500 |
| 1999-2000 | Cadillac | Escalade |
| 1999-2017 | Chevrolet | Silverado 1500 |
| 2000-2014 | Chevrolet | Suburban 1500 |
| 2002-2006 | Chevrolet | Avalanche 1500 |
| 2002-2006 | Chevrolet | Trailblazer EXT |
| 2002-2009 | Chevrolet | Trailblazer |
| 2002-2009 | GMC | Envoy |
| 2002-2013 | Cadillac | Escalade |
| 2003-2006 | Chevrolet | SSR |
| 2004-2007 | Buick | Rainier |
| 2004-2012 | Chevrolet | Colorado |
| 2004-2012 | GMC | Canyon |
| 2007-2013 | Chevrolet | Avalanche |
| 2007 | Chevrolet | Silverado 1500 Classic |
Specifications
| Brand | Yukon Gear & Axle |
|---|---|
| Manufacturer Part Number | YG GM8.5-488 |
| SKU | YUKYG GM8.5-488 |
| UPC | 883584241621 |
| Product Type | Final Drive Gears |
| Fitment Type | Vehicle Specific |
| Catalog Status | Manufacturer Catalog Verified |
| Condition | New |
What's Included
One new Yukon Gear & Axle final drive gears identified by manufacturer part number YG GM8.5-488, plus only the bearings, seals, shims, fasteners, and hardware expressly supplied for this exact part number.
About Yukon Gear & Axle
Yukon Gear & Axle develops ring and pinion sets, axles, differentials, bearings, seals, installation kits, and drivetrain service components for street, towing, off-road, and performance applications.
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Frequently Asked Questions
Will Yukon Gear & Axle YG GM8.5-488 fit my vehicle?
Verified catalog applications: 1980-1981 Chevrolet Camaro, 1980-1983 Chevrolet Malibu, 1980-1985 Chevrolet Impala, 1980-1985 GMC K1500 Suburban, 1980-1986 Chevrolet C10, 1980-1986 Chevrolet C10 Suburban, 1980-1986 Chevrolet K10, 1980-1986 Chevrolet K10 Suburban, 1980-1986 Chevrolet K20, 1980-1986 Chevrolet K20 Suburban, 1980-1986 Chevrolet K5 Blazer, 1980-1986 GMC C1500, 1980-1986 GMC C1500 Suburban, 1980-1986 GMC K1500, 1980-1987 Buick Regal, 1980-1988 Chevrolet Monte Carlo, 1980-1989 Buick Electra, 1980-1995 Chevrolet G10, 1980-1995 Chevrolet G20, 1980-1995 GMC G1500, 1980-1995 GMC G2500, 1980-1996 Chevrolet Caprice, 1987-1988 Chevrolet R10 Suburban, 1987-1988 Chevrolet Suburban, 1987-1988 Chevrolet V20 Suburban, 1987-1994 Chevrolet Blazer, 1987 Chevrolet R10, 1987 Chevrolet V10, 1987 Chevrolet V20, 1988-1999 Chevrolet C1500, 1988-1999 Chevrolet K1500, 1988-1999 GMC C1500, 1988-1999 GMC K1500, 1989-1990 Chevrolet K2500, 1989-1991 Chevrolet R1500 Suburban, 1989-1991 Chevrolet V1500 Suburban, 1989-1991 Chevrolet V2500 Suburban, 1989-2000 Chevrolet C2500, 1992-1999 Chevrolet C1500 Suburban, 1992-1999 Chevrolet K1500 Suburban, 1992-1999 GMC C1500 Suburban, 1992-1999 GMC K1500 Suburban, 1994-1996 Chevrolet Impala, 1994-2004 Chevrolet S10, 1994 GMC Jimmy, 1995-1996 Chevrolet Monte Carlo, 1995-2017 Chevrolet Tahoe, 1996-1998 Chevrolet Express 2500, 1996-2014 Chevrolet Express 1500, 1997-2000 GMC C2500, 1999-2000 Cadillac Escalade, 1999-2017 Chevrolet Silverado 1500, 2000-2014 Chevrolet Suburban 1500, 2002-2006 Chevrolet Avalanche 1500, 2002-2006 Chevrolet Trailblazer EXT, 2002-2009 Chevrolet Trailblazer, 2002-2009 GMC Envoy, 2002-2013 Cadillac Escalade, 2003-2006 Chevrolet SSR, 2004-2007 Buick Rainier, 2004-2012 Chevrolet Colorado, 2004-2012 GMC Canyon, 2007-2013 Chevrolet Avalanche, 2007 Chevrolet Silverado 1500 Classic. Confirm axle housing, differential, spline count, gear ratio, carrier break, position, and manufacturer exclusions for the exact vehicle before ordering.
What should I verify before ordering?
Verify the exact part number, vehicle, axle housing, differential, spline count, gear ratio, carrier break, bearing dimensions, position, intended use, and manufacturer exclusions.
What is included?
The package contains only the Yukon Gear & Axle components and hardware specified for part number YG GM8.5-488. Related bearings, seals, fluids, tools, and service parts are sold separately unless expressly listed.
Installation
Follow Yukon Gear & Axle's current instructions for part number YG GM8.5-488. Confirm all measurements and clearances, inspect mating components, set bearing preload and gear backlash where applicable, verify contact pattern, use specified lubricants and torque values, and have precision differential work completed by a qualified drivetrain technician.
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