Remanufactured Axle Assembly 3.73 Gear Ratio

The Zumbrota Drivetrain RAA435-2209C is a remanufactured axle assembly engineered for Ford 9.75-inch differentials, specifically designed for 2004-2008 Ford F-150 trucks equipped with disc brakes and a 3.73 gear ratio. This unit is built to restore optimal drivetrain performance and reliability. All axle tubes are inspected and straightened to precise OEM specifications, while the housing undergoes rigorous testing for any surface wear or cracks. Internally, every component, including the ring and pinion gears, clutches, and carriers, is subjected to a 100% inspection. To guarantee longevity and performance, all bearings, seals, crush sleeves, pinion nuts, and shims are replaced with new parts. The housings are also cleaned using a state-of-the-art hydro blasting and rinsing process to restore them to an OEM finish, and the correct rolling torque is established using inch-pound measurements for precision setup. It does not include hubs, brakes, backing plates, or axle shafts, which are typically reused from the original assembly or sourced separately. A refundable core charge of $600.00 applies to this product, which is returned upon the satisfactory return of your old, salvageable part.