Remanufactured Axle Assembly 3.55 Ratio Ford 9.75" Posi Traction

The Zumbrota Drivetrain RAA435-212C-P is a remanufactured complete axle assembly designed for the 2009-2011 Ford F150. This unit features a 3.55 gear ratio and utilizes a Ford 9.75-inch ring gear. It comes equipped with Posi Traction (Limited Slip Differential) for enhanced traction. Zumbrota Drivetrain meticulously rebuilds these axle assemblies to high standards of precision and reliability. The process includes thorough inspection of housings for straightness, cracks, and surface wear. All internal components, such as ring and pinions, gears, clutches, and carriers, undergo comprehensive inspection and testing. To ensure longevity and performance, all bearings, seals, crush sleeves, pinion nuts, and shims are replaced. The gears are set with precise backlash and rolling torque, established using inch-pound measurements, to guarantee proper lubrication and quiet operation. Zumbrota employs an exclusive hydro-blast rinse and sandblasting procedure on both internal and external parts, followed by a proprietary shot-enticed deep cleaning process. This rigorous cleaning method sets a high standard for remanufactured axle assemblies, restoring housings to an OEM finish. The assembly does not include hubs, brakes, backing plates, or axle shafts.