Rear Axle Assembly 3.55 Ratio Posi Traction

The Zumbrota Drivetrain RAA435-2032D is a remanufactured axle assembly meticulously rebuilt to the highest standards of precision and reliability for 1999-2000 Ford F-150 trucks. Each axle assembly undergoes a thorough inspection process, including checks for straightness, cracks, and surface wear. All internal components, such as ring and pinions, internal gears, clutches, and carriers, are fully inspected and tested. To ensure longevity and optimal performance, all bearings and seals are replaced, and gears are set with precise backlash and rolling torque measurements using inch-pound settings. Zumbrota employs an exclusive hydro-blast rinse and sandblasting procedure, followed by a proprietary shot-enticed deep cleaning process for both internal and external parts. This rigorous cleaning method sets a high standard for remanufactured axle assemblies and restores housings to an OEM finish. The assembly is designed with a 3.55 gear ratio, a 9.75-inch ring gear diameter, rear disc brakes, and Posi Traction. It features 12 mm wheel studs and a 1.62-inch diameter wheel bearing surface on the axle shaft. The specific tag numbers for this assembly are S918D and S919. It is important to note that this remanufactured axle assembly does not include hubs, brakes, backing plates, or axle shafts. Buyers should verify compatibility with their specific vehicle's tag numbers.