USA Standard Master Overhaul Kit For The 99-08 GM 8.6in Diff

2025-09-10T01:26:19-06:00

Price: 217.89

If your GM truck’s rear end is whining, leaking, or just worn out, the GM 8.6 master overhaul kit from USA Standard Gear is the fix you need. Designed for 1999–2008 GM 8.6-inch differentials, this complete rebuild kit restores performance, eliminates gear noise, and keeps your rig running strong.

The GM 8.6 master overhaul kit includes Timken bearings and races, high-quality seals, shims, ring gear bolts, a diff cover gasket, and marking compound with a brush. Whether you're rebuilding a Silverado, Tahoe, or Suburban, this kit delivers everything needed for a smooth, hassle-free install.

Built for durability and precision, USA Standard’s GM 8.6 master overhaul kit is trusted by pros and DIYers alike. It’s a one-box solution that saves time, avoids mismatched parts, and gets your differential back to peak condition.

Features and Benefits

Complete Rebuild Kit – All essential components for a full rear differential overhaul.

Timken Bearings and Races – Trusted for strength, longevity, and smooth operation.

High-Quality Seals and Shims – Prevent leaks and ensure precise gear alignment.

Ring Gear Bolts and Gasket – Secure fit and clean seal for long-term reliability.

Marking Compound and Brush – Helps set gear patterns accurately during install.

Built for GM Tough Performance

Whether you're towing, hauling, or just keeping your truck in top shape, the GM 8.6 master overhaul kit from USA Standard Gear gives your rear axle the refresh it deserves. Say goodbye to gear whine and hello to smooth, confident driving.

Specifications

Specification | Details
Part Number | yukZK GM8.6
Axle Type | GM 8.6" Rear
Model Years | 1999–2008
Bearings | Timken
Included Components | Carrier bearings/races, pinion bearings/races, shims, ring gear bolts, diff cover gasket, inner axle seals, pinion slingers, pinion seal and nut, marking compound, brush
Brand | USA Standard Gear
Prop 65 Warning | Contains arsenic; see www.P65Warnings.ca.gov

This Part Fits:

Year | Make | Model | Submodel
2004-2007 | Buick | Rainier | CXL
2004-2005 | Buick | Rainier | CXL Plus
1999-2000,2002-2008 | Cadillac | Escalade | Base
2008 | Cadillac | Escalade | Platinum
2007-2008 | Chevrolet | Avalanche | LS
2007-2008 | Chevrolet | Avalanche | LT
2007-2008 | Chevrolet | Avalanche | LTZ
2002-2005 | Chevrolet | Avalanche 1500 | Base
2005-2006 | Chevrolet | Avalanche 1500 | LS
2005-2006 | Chevrolet | Avalanche 1500 | LT
2002-2003 | Chevrolet | Avalanche 1500 | North Face
2002-2003 | Chevrolet | Avalanche 1500 | On Road Edition
2003 | Chevrolet | Avalanche 1500 | WBH
2004-2006 | Chevrolet | Avalanche 1500 | Z66
2002-2006 | Chevrolet | Avalanche 1500 | Z71
1999 | Chevrolet | C1500 | LS
1999 | Chevrolet | C1500 Suburban | Base
1999 | Chevrolet | C1500 Suburban | LS
1999 | Chevrolet | C1500 Suburban | LT
1999-2000 | Chevrolet | C2500 | Base
1999-2000 | Chevrolet | C2500 | LS
2004 | Chevrolet | Colorado | Base
2004,2006-2008 | Chevrolet | Colorado | LS
2006-2008 | Chevrolet | Colorado | LT
2004-2005 | Chevrolet | Colorado | Sport
2004-2005 | Chevrolet | Colorado | Sport LS
2006-2008 | Chevrolet | Colorado | WT
2004-2005 | Chevrolet | Colorado | Z71
2004-2005 | Chevrolet | Colorado | Z71 LS
2004-2005 | Chevrolet | Colorado | Z85
2004-2005 | Chevrolet | Colorado | Z85 LS
2003-2008 | Chevrolet | Express 1500 | Base
2003-2008 | Chevrolet | Express 1500 | LS
2006-2008 | Chevrolet | Express 1500 | LT
1999 | Chevrolet | K1500 | LS
1999 | Chevrolet | K1500 Suburban | Base
1999 | Chevrolet | K1500 Suburban | LS
1999 | Chevrolet | K1500 Suburban | LT
1999-2003 | Chevrolet | S10 | Base
1999-2004 | Chevrolet | S10 | LS
1999-2003 | Chevrolet | S10 | Xtreme
1999-2003 | Chevrolet | S10 | ZR2
2002-2004 | Chevrolet | S10 | ZR5
1999-2005 | Chevrolet | Silverado 1500 | Base
2004-2006 | Chevrolet | Silverado 1500 | Hybrid
1999-2008 | Chevrolet | Silverado 1500 | LS
1999-2008 | Chevrolet | Silverado 1500 | LT
2007-2008 | Chevrolet | Silverado 1500 | LTZ
2005-2006 | Chevrolet | Silverado 1500 | SS
2002-2008 | Chevrolet | Silverado 1500 | WT
2004 | Chevrolet | Silverado 1500 | Z71 Off-Road
2003-2006 | Chevrolet | SSR | Base
2000-2001,2006 | Chevrolet | Suburban 1500 | Base
2000-2008 | Chevrolet | Suburban 1500 | LS
2000-2008 | Chevrolet | Suburban 1500 | LT
2007-2008 | Chevrolet | Suburban 1500 | LTZ
2004-2006 | Chevrolet | Suburban 1500 | Z71
1999-2001,2006 | Chevrolet | Tahoe | Base
2008 | Chevrolet | Tahoe | Hybrid
2000 | Chevrolet | Tahoe | Limited
1999-2008 | Chevrolet | Tahoe | LS
1999-2008 | Chevrolet | Tahoe | LT
2007-2008 | Chevrolet | Tahoe | LTZ
2007-2008 | Chevrolet | Tahoe | PPV
2000,2003-2006 | Chevrolet | Tahoe | Z71
2008 | Chevrolet | Trailblazer | Base
2002-2007 | Chevrolet | Trailblazer | LS
2002-2008 | Chevrolet | Trailblazer | LT
2002-2003 | Chevrolet | Trailblazer | LTZ
2002-2004 | Chevrolet | Trailblazer | North Face
2006-2008 | Chevrolet | Trailblazer | SS
1999 | GMC | C1500 | Sierra SL
1999 | GMC | C1500 | Sierra SLE
1999 | GMC | C1500 | Sierra SLT
1999 | GMC | C1500 Suburban | Base
1999 | GMC | C1500 Suburban | SLE
1999 | GMC | C1500 Suburban | SLT
1999-2000 | GMC | C2500 | Sierra SL
1999-2000 | GMC | C2500 | Sierra SLE
1999-2000 | GMC | C2500 | Sierra SLT
2004,2006-2008 | GMC | Canyon | SL
2004,2006-2008 | GMC | Canyon | SLE
2006-2008 | GMC | Canyon | SLT
2006-2008 | GMC | Canyon | WT
2004-2005 | GMC | Canyon | Z71 Fleet
2004-2005 | GMC | Canyon | Z71 SL
2004-2005 | GMC | Canyon | Z71 SLE
2004-2005 | GMC | Canyon | Z85 SL
2004-2005 | GMC | Canyon | Z85 SLE
2005-2008 | GMC | Envoy | Denali
2002-2008 | GMC | Envoy | SLE
2002-2008 | GMC | Envoy | SLT
1999 | GMC | K1500 | Sierra SL
1999 | GMC | K1500 | Sierra SLE
1999 | GMC | K1500 | Sierra SLT
1999 | GMC | K1500 Suburban | Base
1999 | GMC | K1500 Suburban | SLE
1999 | GMC | K1500 Suburban | SLT
1999-2008 | GMC | Savana 1500 | Base
2006-2008 | GMC | Savana 1500 | LS
2006-2008 | GMC | Savana 1500 | LT
1999-2000,2003-2005 | GMC | Savana 1500 | SLE
2001-2002 | GMC | Savana 1500 | SLT
2002-2005 | GMC | Sierra 1500 | Base
2001 | GMC | Sierra 1500 | C3
2002-2008 | GMC | Sierra 1500 | Denali
2002 | GMC | Sierra 1500 | HT
2005-2006 | GMC | Sierra 1500 | Hybrid
1999-2003,2006-2008 | GMC | Sierra 1500 | SL
1999-2008 | GMC | Sierra 1500 | SLE
1999-2008 | GMC | Sierra 1500 | SLT
2002-2008 | GMC | Sierra 1500 | WT
1999-2004 | GMC | Sonoma | SL
1999-2001 | GMC | Sonoma | SLE
1999-2004 | GMC | Sonoma | SLS
1999-2000,2008 | GMC | Yukon | Denali
2008 | GMC | Yukon | Hybrid
2006 | GMC | Yukon | SL
1999-2008 | GMC | Yukon | SLE
1999-2008 | GMC | Yukon | SLT
2001-2008 | GMC | Yukon XL 1500 | Denali
2006 | GMC | Yukon XL 1500 | SL
2000-2008 | GMC | Yukon XL 1500 | SLE
2000-2008 | GMC | Yukon XL 1500 | SLT
2008 | Hummer | H3 | Adventure
2008 | Hummer | H3 | Alpha
2006-2008 | Hummer | H3 | Base
2008 | Hummer | H3 | Luxury
2007-2008 | Hummer | H3 | X
2003,2006 | Isuzu | Ascender | Base
2003-2005 | Isuzu | Ascender | Limited
2003-2006 | Isuzu | Ascender | LS
2004-2005,2007-2008 | Isuzu | Ascender | S
2006-2008 | Saab | 9-7x | 4.2i
2006-2008 | Saab | 9-7x | 5.3i
2008 | Saab | 9-7x | Aero
2005 | Saab | 9-7x | Arc
2005 | Saab | 9-7x | Linear

REVIEWS

JG

Rebuilt the rear diff on my '04 Tahoe with this kit and it was perfect. Everything fit like factory and the bearings were top quality. No more gear noise and it runs smooth again!

James G.

Wichita, KS

★★★★★

LS

This overhaul kit had everything I needed for my '07 Silverado rear diff rebuild. Bearings were solid, install went smooth, and it shipped fast. Definitely recommend for any serious DIYer.

Logan S.

Lexington, KY

★★★★★