Front Differential Drive Pinion Gear - GM (12479329)

Over 7500 gvw. All models. 1/2 ton. 3.73 ratio. All models. 3/4, 1 ton. 3.73 ratio. Silverado, sierra. 2500, 3500 series. 3.73 ratio. With crew cab. 9.25 ring gear. Yukon XL, Suburban. 6.0l. 3.73 ratio. Hummer H2. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors Original equipment parts are designed to work with your GM vehicle safety systems - aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type