ZF 9.25 CHY 3.21 Rear Ring Pinion Install Kit Posi Axle Bearings Seals 9.25 ZF CHY 3.21 REA

High-Quality Rear Axle Ring and Pinion Gear Kit. Upgrade your RAM 1500 with the USA Standard Gear 9.25-Inch Chrysler Posi Rear Axle Ring and Pinion Gear Kit, featuring a 3.21 gear ratio. This kit replaces worn or damaged factory ring and pinion gears, ensuring smooth and efficient vehicle operation. It enhances drivetrain durability and longevity through improved gear strength and provides proper gear meshing for reduced noise and smooth power transmission. Made from high-quality materials, this kit is built to withstand daily driving and heavy-duty use. It includes a 3.21 Ring & Pinion Gear Set, a Master Install kit with Koyo bearings and necessary small parts, Axle Bearings & Seals, and a Yukon Dura Grip Clutch Style Limited Slip (LSD) unit. All Positraction units are fully rebuildable.