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SKU: YPKGM8.5-P-30 | UPC: 883584160533
Yukon Gear & Axle YPKGM8.5-P-30 Positraction Internals for 8.5in GM 30 Spline Axles
Upgrade the spider gears in your GM 8.5-inch rear differential equipped with 30 spline axles using this Yukon Gear kit. Designed for Chevrolet trucks, SUVs like Silverado, Tahoe, Suburban, Avalanche, and compatible Buick, Cadillac, GMC models from 1980-2017. Built with higher quality materials and advanced manufacturing for extended durability over stock components.
Key Features
- High-Quality Construction – Precision-machined steels and larger pin trunnions exceed OEM standards for reliable power transfer.
- Direct Replacement – Perfect internals for Yukon Dura Grip or Eaton positraction units in 8.5-inch GM differentials.
- Extended Service Life – Superior materials resist wear during high-torque off-road or towing demands.
- Complete Spider Gear Set – Includes all necessary side gears, spiders, washers, and cross pin for straightforward install.
- One-Year Warranty – Covered against manufacturing defects for peace of mind.
- Broad Compatibility – Fits 30 spline axles across multiple GM vehicles without factory Gov-Loc.
Specifications
| Detail | Value |
|---|---|
| Brand | Yukon Gear & Axle |
| Type | Positraction Spider Gear Internals Kit |
| Compatibility | GM 8.5-inch 10-bolt with 30 spline axles |
| Axle Spline | 30 spline |
| Weight | 5.85 lbs |
| Shipping Dimensions | 9.8 x 9 x 3.9 inches |
| Country of Origin | USA |
| Warranty | 1 year against manufacturing defects |
Whats Included
- 2 Side gears
- 4 Spider gears
- Cross pin/shaft
- Thrust washers
- Preload springs (if applicable)
Product Notes
- Clutches not included. purchase separately for full positraction rebuild.
- Compatible with Yukon Dura Grip and Eaton positraction differentials only.
- Not for use with factory GM Gov-Loc positraction.
This Part Fits
| Year Range | Make | Model | Notes |
|---|---|---|---|
| 1980-1989 | Buick | Electra | Estate Wagon |
| 1980-1985 | Buick | Electra | Limited |
| 1980-1985 | Buick | Electra | Park Avenue |
| 1985 | Buick | Electra | T-Type |
| 2004-2007 | Buick | Rainier | CXL |
| 2004-2005 | Buick | Rainier | CXL Plus |
| 1980-1987 | Buick | Regal | Base |
| 1982-1983 | Buick | Regal | Estate Wagon |
| 1987 | Buick | Regal | GNX |
| 1984-1987 | Buick | Regal | Grand National |
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