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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.
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.
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:
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.
…and 277 additional fitments. Contact us to confirm yours.
| Brand | Yukon Gear & Axle |
|---|---|
| Manufacturer part number | YPKGM8.5-P-30 |
| GGC SKU | YUKYPKGM8.5-P-30 |
| UPC / GTIN | 883584160533 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 12.1 × 12 × 3.3 in |
|---|---|
| Shipping weight | 5.5 lb |
| Year | Make | Model | Trim |
|---|---|---|---|
| 1980-1985 | Buick | Electra | Limited, 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, 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, Premium |
| 2007-2012 | Chevrolet | Avalanche | LS, LT, LTZ |
| 2013 | Chevrolet | Avalanche | Black Diamond LS, Black Diamond LT, Black Diamond LTZ |
| 2002-2003 | Chevrolet | Avalanche 1500 | North Face, 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 |
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