Rear Axle Assembly 3.73 Ratio Posi Limited Slip

The Zumbrota Drivetrain RAA435-171B-P is a remanufactured rear axle assembly designed for 2009 Ram 2500 and 3500 trucks equipped with the 11.5-inch AAM axle, a 3.73 gear ratio, single rear wheels, and 4x4 driveline. This unit features a Posi Limited Slip Differential (LSD) for improved traction. Each Zumbrota axle assembly is meticulously rebuilt to exacting standards. The remanufacturing process involves a comprehensive inspection of the entire assembly for structural integrity, including checking for straightness, cracks, and surface wear. Internally, all components such as ring and pinions, gears, and carriers are thoroughly inspected and tested. To ensure optimal performance and longevity, all bearings and seals are replaced, and gears are precisely set for tooth contact patterns and rolling torque, with backlash adjusted for proper lubrication and quiet operation. Zumbrota employs an exclusive cleaning process that includes hydro-blast rinsing, sandblasting, and a proprietary shot-enticed deep cleaning for both internal and external parts. This commitment to detail in remanufacturing sets a high standard for axle assemblies. The assembly includes the differential cover but does not come with fluid.