P Remanufactured Complete Axle Assembly 3.31 Ratio 12mm

The Zumbrota Drivetrain RAA435-2040A-P is a remanufactured complete axle assembly meticulously rebuilt to meet high standards of precision and reliability. Each unit is thoroughly inspected for straightness, cracks, and surface wear, ensuring a quality replacement for your vehicle's drivetrain. Internally, all components undergo a rigorous inspection and testing process, including the ring and pinion gears, internal gears, clutches, and carriers. To guarantee longevity and optimal performance, all bearings and seals are replaced. The gears are inspected for proper tooth contact patterns and set with precise rolling torque using inch-pound measurements. Correct gear backlash is established to ensure quiet operation and proper lubrication. Zumbrota Drivetrain 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 comprehensive cleaning method sets a high standard for axle assembly remanufacturing, restoring housings to an OEM finish. Axle tubes are inspected and straightened to OEM specifications. This specific axle assembly is designed for 1999-2000 Ford Expedition models and features a 3.31 gear ratio, a Ford 9.75-inch ring gear, 12mm wheel studs, and a Posi Traction differential. It is important to note that this assembly does not include hubs, brakes, backing plates, or axle shafts. The tag number for this unit is S930M.