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Yukon Gear Dura Grip Positraction For GM 8.5in & 8.6in w/ 30 Spline Axles is the exact Yukon Gear & Axle differentials identified by manufacturer part number YDGGM8.5-3-30-1. Match the part number, vehicle, axle housing, differential, spline count, gear ratio, carrier break, position, dimensions, and intended use before ordering.
Key Features
- Generally, 28-spline axles are found in older and lighter-duty GM 8.5 inch applications.
- Full-size 1500 trucks and SUVs from the late 1980s onward and essentially all 8.6 inch applications use 30-spline shafts.
- For the 8.5 inch housing, use carrier bearing LM102949 and race LM102911.
- For the 8.6 inch housing, use bearing LM603049 and race LM603012.
- The two housings have different race outer diameters (2.891 inch for 8.5, 3.062 inch for 8.6).
- Built with forged 4320 chromoly spider gears and composite clutch packs inside a nodular iron housing, the YDGGM8.5-3-30-1 provides smooth, progressive limited slip action that improves traction on snow, mud, and uneven terrain without the harshness of a mechanical locker.
Fitment
Verified catalog applications: 1980-1981 Chevrolet Camaro, 1980-1983 Chevrolet Malibu, 1980-1985 Chevrolet Impala, 1980-1986 Chevrolet C10, 1980-1986 Chevrolet C10 Suburban, 1980-1986 Chevrolet C20 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 C2500 Suburban, 1980-1987 Buick Regal, 1980-1989 Buick Electra, 1980-1995 Chevrolet G10, 1980-1995 Chevrolet G20, 1980-1996 Chevrolet Caprice, 1987-1988 Chevrolet R10 Suburban, 1987-1988 Chevrolet R20 Suburban, 1987-1988 Chevrolet Suburban, 1987-1988 Chevrolet V10 Suburban, 1987-1988 Chevrolet V20 Suburban, 1987-2005 Chevrolet Blazer, 1987 Chevrolet R10, 1987 Chevrolet V10, 1987 Chevrolet V20, 1988-1991 Chevrolet K2500, 1988-1999 Chevrolet C1500, 1988-1999 Chevrolet K1500, 1988-1999 GMC C1500, 1989-1990 Chevrolet R2500 Suburban, 1989-1991 Chevrolet R1500 Suburban, 1989-1991 Chevrolet V1500 Suburban, 1989-1991 Chevrolet V2500 Suburban, 1989-2000 Chevrolet C2500, 1989 Chevrolet R2500, 1992-1999 Chevrolet C1500 Suburban, 1992-1999 Chevrolet K1500 Suburban, 1992-1999 GMC C1500 Suburban, 1992 Chevrolet C3500, 1994-1996 Chevrolet Impala, 1994-2004 Chevrolet S10, 1994 Chevrolet S10 Blazer, 1995-2017 Chevrolet Tahoe, 1996-2014 Chevrolet Express 1500, 1997-2000 GMC C2500, 1999-2000 Cadillac Escalade, 1999-2017 Chevrolet Silverado 1500, 2000-2014 Chevrolet Suburban 1500, 2001-2003 Chevrolet Silverado 1500 HD, 2002-2006 Chevrolet Avalanche 1500, 2002-2009 Chevrolet Trailblazer, 2002-2013 Cadillac Escalade EXT, 2002-2014 Cadillac Escalade, 2003-2006 Chevrolet SSR, 2003-2014 Cadillac Escalade ESV, 2004-2007 Buick Rainier, 2004-2012 Chevrolet Colorado, 2004 GMC Canyon, 2005-2006 Chevrolet Silverado 1500 HD, 2006-2008 GMC Canyon, 2007-2013 Chevrolet Avalanche, 2007 Chevrolet Silverado 1500 Classic, 2007 Chevrolet Silverado 1500 HD Classic, 2015 Chevrolet Suburban. 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 |
| 1980-1986 | Chevrolet | C10 |
| 1980-1986 | Chevrolet | C10 Suburban |
| 1980-1986 | Chevrolet | C20 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 | C2500 Suburban |
| 1980-1987 | Buick | Regal |
| 1980-1989 | Buick | Electra |
| 1980-1995 | Chevrolet | G10 |
| 1980-1995 | Chevrolet | G20 |
| 1980-1996 | Chevrolet | Caprice |
| 1987-1988 | Chevrolet | R10 Suburban |
| 1987-1988 | Chevrolet | R20 Suburban |
| 1987-1988 | Chevrolet | Suburban |
| 1987-1988 | Chevrolet | V10 Suburban |
| 1987-1988 | Chevrolet | V20 Suburban |
| 1987-2005 | Chevrolet | Blazer |
| 1987 | Chevrolet | R10 |
| 1987 | Chevrolet | V10 |
| 1987 | Chevrolet | V20 |
| 1988-1991 | Chevrolet | K2500 |
| 1988-1999 | Chevrolet | C1500 |
| 1988-1999 | Chevrolet | K1500 |
| 1988-1999 | GMC | C1500 |
| 1989-1990 | Chevrolet | R2500 Suburban |
| 1989-1991 | Chevrolet | R1500 Suburban |
| 1989-1991 | Chevrolet | V1500 Suburban |
| 1989-1991 | Chevrolet | V2500 Suburban |
| 1989-2000 | Chevrolet | C2500 |
| 1989 | Chevrolet | R2500 |
| 1992-1999 | Chevrolet | C1500 Suburban |
| 1992-1999 | Chevrolet | K1500 Suburban |
| 1992-1999 | GMC | C1500 Suburban |
| 1992 | Chevrolet | C3500 |
| 1994-1996 | Chevrolet | Impala |
| 1994-2004 | Chevrolet | S10 |
| 1994 | Chevrolet | S10 Blazer |
| 1995-2017 | Chevrolet | Tahoe |
| 1996-2014 | Chevrolet | Express 1500 |
| 1997-2000 | GMC | C2500 |
| 1999-2000 | Cadillac | Escalade |
| 1999-2017 | Chevrolet | Silverado 1500 |
| 2000-2014 | Chevrolet | Suburban 1500 |
| 2001-2003 | Chevrolet | Silverado 1500 HD |
| 2002-2006 | Chevrolet | Avalanche 1500 |
| 2002-2009 | Chevrolet | Trailblazer |
| 2002-2013 | Cadillac | Escalade EXT |
| 2002-2014 | Cadillac | Escalade |
| 2003-2006 | Chevrolet | SSR |
| 2003-2014 | Cadillac | Escalade ESV |
| 2004-2007 | Buick | Rainier |
| 2004-2012 | Chevrolet | Colorado |
| 2004 | GMC | Canyon |
| 2005-2006 | Chevrolet | Silverado 1500 HD |
| 2006-2008 | GMC | Canyon |
| 2007-2013 | Chevrolet | Avalanche |
| 2007 | Chevrolet | Silverado 1500 Classic |
| 2007 | Chevrolet | Silverado 1500 HD Classic |
| 2015 | Chevrolet | Suburban |
Specifications
| Brand | Yukon Gear & Axle |
|---|---|
| Manufacturer Part Number | YDGGM8.5-3-30-1 |
| SKU | YUKYDGGM8.5-3-30-1 |
| UPC | 883584260165 |
| Product Type | Differentials |
| Fitment Type | Vehicle Specific |
| Catalog Status | Manufacturer Catalog Verified |
| Condition | New |
What's Included
One new Yukon Gear & Axle differentials identified by manufacturer part number YDGGM8.5-3-30-1, 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 YDGGM8.5-3-30-1 fit my vehicle?
Verified catalog applications: 1980-1981 Chevrolet Camaro, 1980-1983 Chevrolet Malibu, 1980-1985 Chevrolet Impala, 1980-1986 Chevrolet C10, 1980-1986 Chevrolet C10 Suburban, 1980-1986 Chevrolet C20 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 C2500 Suburban, 1980-1987 Buick Regal, 1980-1989 Buick Electra, 1980-1995 Chevrolet G10, 1980-1995 Chevrolet G20, 1980-1996 Chevrolet Caprice, 1987-1988 Chevrolet R10 Suburban, 1987-1988 Chevrolet R20 Suburban, 1987-1988 Chevrolet Suburban, 1987-1988 Chevrolet V10 Suburban, 1987-1988 Chevrolet V20 Suburban, 1987-2005 Chevrolet Blazer, 1987 Chevrolet R10, 1987 Chevrolet V10, 1987 Chevrolet V20, 1988-1991 Chevrolet K2500, 1988-1999 Chevrolet C1500, 1988-1999 Chevrolet K1500, 1988-1999 GMC C1500, 1989-1990 Chevrolet R2500 Suburban, 1989-1991 Chevrolet R1500 Suburban, 1989-1991 Chevrolet V1500 Suburban, 1989-1991 Chevrolet V2500 Suburban, 1989-2000 Chevrolet C2500, 1989 Chevrolet R2500, 1992-1999 Chevrolet C1500 Suburban, 1992-1999 Chevrolet K1500 Suburban, 1992-1999 GMC C1500 Suburban, 1992 Chevrolet C3500, 1994-1996 Chevrolet Impala, 1994-2004 Chevrolet S10, 1994 Chevrolet S10 Blazer, 1995-2017 Chevrolet Tahoe, 1996-2014 Chevrolet Express 1500, 1997-2000 GMC C2500, 1999-2000 Cadillac Escalade, 1999-2017 Chevrolet Silverado 1500, 2000-2014 Chevrolet Suburban 1500, 2001-2003 Chevrolet Silverado 1500 HD, 2002-2006 Chevrolet Avalanche 1500, 2002-2009 Chevrolet Trailblazer, 2002-2013 Cadillac Escalade EXT, 2002-2014 Cadillac Escalade, 2003-2006 Chevrolet SSR, 2003-2014 Cadillac Escalade ESV, 2004-2007 Buick Rainier, 2004-2012 Chevrolet Colorado, 2004 GMC Canyon, 2005-2006 Chevrolet Silverado 1500 HD, 2006-2008 GMC Canyon, 2007-2013 Chevrolet Avalanche, 2007 Chevrolet Silverado 1500 Classic, 2007 Chevrolet Silverado 1500 HD Classic, 2015 Chevrolet Suburban. 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 YDGGM8.5-3-30-1. 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 YDGGM8.5-3-30-1. 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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