Description: 30. 10-20, diesel. 2wd, 6.5L. 2wd without 15,000 gvwr 3/4 ton. 1/2, 3/4 & 1 ton, 1996 new style, 3/4 ton, 7700, 8600 lb gvw. Helps keep debris and moisture from entering your vehicle's wheel bearing This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors Collision parts are designed to help promote proper and safe repair