The Yukon 8.6-inch GM 3.73 rear ring-and-pinion install kit bundles a matched gear set with a 30-spline Yukon Dura Grip limited-slip posi, axle bearings and seals for an 8.6" GM differential. Yukon Pro Kits include Master Install hardware and high-quality Timken bearings, giving you the small parts needed to finish a re-gear quickly and backed by the manufacturer’s Y.E.S. lifetime protection plan.
Yukon 8.6in GM 3.73 Rear Ring & Pinion Install Kit 30 Spline Positraction Axle Bearings and Seals