R&P 4.30 GM10BOLT8.5

This Motive Gear ring and pinion kit is designed for GM 8.5" 10-Bolt Front/Rear and 8.6" 10-Bolt Rear differentials. It's an ideal replacement for the 2007-2018 GMC Sierra 1500, built to handle high horsepower and intense torque for off-roading and racing. Constructed from high-caliber, first-run steel with computer-controlled heat treatment, it offers superior strength. The kit features an 8.5-inch gear diameter, 10 ring gear bolts, a 4.30 ratio, and a 30-spline pinion. Basic installation requires general mechanical knowledge and hand tools. It comes with a 2-year or 100,000-mile warranty.