8.8-inch Rear Axle Assembly 3.31 Posi Traction

The Zumbrota Drivetrain RAA435-2026C is a remanufactured axle assembly meticulously rebuilt to exacting standards for precision and reliability. Designed for the Ford 8.8-inch rear axle, this unit features a 3.31 gear ratio and a Posi Traction limited-slip differential for enhanced traction. Each axle assembly undergoes a comprehensive inspection process, including checks for straightness, cracks, and surface wear on the housing. All internal components, such as ring and pinions, internal gears, clutches, and carriers, are thoroughly inspected and tested. Zumbrota replaces all bearings and seals, and precisely sets up the gears for optimal tooth contact patterns, correct rolling torque, and proper backlash to ensure longevity and quiet operation. The remanufacturing process includes an exclusive hydro-blast rinse and sandblasting procedure, followed by a proprietary shot-enticed deep cleaning, setting a high standard for axle assembly remanufacturing. This rigorous process ensures the housing is straightened to OEM specifications and that all internal components meet stringent quality control measures. This specific assembly is configured for rear drum brakes and is identified by the tag number S854F. It is essential to verify your vehicle's tag number to confirm fitment. Please note that this assembly does not include hubs, brakes, backing plates, or axle shafts, which may need to be sourced separately.