Remanufactured Rear Axle Assembly 4.10 Posi Limited Slip Differential

The Zumbrota Drivetrain RAA435-2246B-P is a remanufactured rear axle assembly for Ford 10.5-inch differentials, precision-built to meet rigorous quality standards for reliability. Each axle assembly undergoes thorough inspection for straightness, cracks, and surface wear. All internal components, including ring and pinions, internal gears, clutches, and carriers, are fully inspected and tested. To ensure optimal performance and longevity, all bearings and seals are replaced, and gears are meticulously set for ideal tooth contact patterns and rolling torque using inch-pound measurements. Proper gear backlash is established to guarantee adequate gear lubrication and quiet operation, while axle tubes are checked to meet OEM straightness standards. Zumbrota employs an exclusive hydro-blast rinse and sandblasting procedure, followed by a proprietary shot-peened deep cleaning process for superior remanufacturing. This specific assembly is designed for 2005-2007 Ford F250 models with single rear wheels, excluding cab chassis configurations. It features a Ford 10.5-inch ring gear size, a 4.10 gear ratio, and a Posi Limited Slip Differential for improved traction. The axle type is full floating, and the differential cover is included, though fluid is not. The Hollander number for this unit is 435-2246B-P.