4.10 Posi Traction Complete Axle Assembly

The Zumbrota Drivetrain RAA435-1831J-P is a remanufactured complete axle assembly designed for Ford 8.8 Inch differentials, specifically featuring a 4.10 gear ratio and Posi Traction for improved traction and performance. This axle assembly is rebuilt to high standards of precision and reliability. It undergoes comprehensive inspection of all components, including checks for housing straightness, cracks, and surface wear. Internal parts such as ring and pinions, gears, clutches, and carriers are meticulously inspected. As part of the remanufacturing process, all bearings, seals, crush sleeves, pinion nuts, and shims are replaced. The gears are set with precise tooth contact patterns and rolling torque, using inch-pound measurements for optimal setup and longevity. Gear backlash is carefully adjusted to ensure proper lubrication and quiet operation. The axle tubes are also inspected to meet OEM specifications for straightness. Zumbrota employs an exclusive cleaning procedure that includes hydro-blasting, sandblasting, and a proprietary deep cleaning process. This multi-step cleaning sets a high standard for remanufactured axle assemblies, bringing cases back to an OEM finish. This specific axle assembly is designed for 2001-2002 Ford Explorer 4-door Sport Trac models. It is important to note that this assembly does not include hubs, brakes, backing plates, or axle shafts.