4.10 Posi Traction Differential Axle Assembly

The Zumbrota Drivetrain RAA435-1496D-P is a remanufactured axle assembly specifically engineered for 1987-1993 Ford F250 models equipped with a 10.25" ring gear. This assembly features a 4.10 gear ratio and a Posi Traction differential, designed to enhance power transfer and performance. Each axle assembly is rebuilt to stringent quality standards, ensuring precision and reliability. The remanufacturing process includes thorough inspection of the housing for straightness, cracks, and surface wear. All internal components, including the ring and pinion gears, internal gears, clutches, and carrier, undergo a complete inspection and testing. To guarantee longevity and optimal performance, all bearings, seals, crush sleeves, pinion nuts, and shims are replaced with new parts. The gears are meticulously set for precise backlash and rolling torque, verified using inch-pound measurements to ensure proper gear lubrication and quiet operation. Zumbrota Drivetrain employs an exclusive cleaning process that includes hydro-blasting, rinsing, and sandblasting, followed by a proprietary shot-enticed deep cleaning procedure. This multi-step cleaning method restores housings to an OEM finish and prepares them for assembly, setting a high standard for remanufactured axle assemblies. It is explicitly for models without ABS.