8.8 IRS Remanufactured Axle Assembly 3.73:1 Posi Limited

The Zumbrota Drivetrain 440-1384D is a remanufactured axle assembly specifically designed for Ford 8.8 Independent Rear Suspension (IRS) differentials. This unit comes with a 3.73:1 gear ratio and a Posi Limited Slip Differential, offering enhanced traction and performance for your vehicle. Each Zumbrota axle assembly is meticulously rebuilt to the highest quality standards. The remanufacturing process includes a comprehensive inspection of all external components for straightness, cracks, and surface wear. Internally, all parts, including ring and pinions, gears, clutches, and carriers, are rigorously inspected and tested. To ensure maximum reliability and longevity, all bearings and seals are replaced with new components. Gears are inspected for optimal tooth contact patterns, and rolling torque is precisely set using inch-pound measurements. Gear backlash is carefully set to ensure proper lubrication and quiet operation. The axle tubes are inspected to meet OEM straightness standards. Zumbrota employs an exclusive hydro-blast rinse and sandblasting procedure, followed by a proprietary shot-peening deep cleaning process, to restore internal and external parts to an OEM finish. Units are shipped in high-density plastic totes to minimize in-transit damage. This assembly is compatible with 2002-2005 Ford Explorer models with the 8.8IRS differential.