Complete Axle Assembly for Ford 9.75 Differential

The Zumbrota Drivetrain RAA435-1906E is a remanufactured complete axle assembly built to exacting standards for precision and reliability. This unit features a Ford 9.75-inch differential with a 3.55 gear ratio, suitable for specific 1999 Ford Expedition models. The remanufacturing process involves a comprehensive inspection of all internal components, including ring and pinions, gears, clutches, and carriers, ensuring optimal performance and longevity. Zumbrota Drivetrain replaces all bearings, seals, crush sleeves, pinion nuts, and shims during the rebuilding process. Gears are meticulously inspected for proper tooth contact patterns and set to correct rolling torque using inch-pound measurements. The axle tubes are inspected to ensure they meet OEM specifications for straightness, and housings are tested for wear and cracks. A proprietary hydro-blast rinse, sandblasting, and shot-peening procedure is used for deep cleaning, restoring cases to an OEM finish. This specific assembly is for a 1999 Ford Expedition with a 3.55 gear ratio and requires verification of the axle tag. It is a semi-floating axle type and includes the cover but does not include fluid. This item is special ordered and may have cancellation or return restrictions.