Dana 30 3.55 Ratio Axle Assembly

The Zumbrota Drivetrain RAA440-1369A is a remanufactured axle assembly specifically engineered for the Dana 30 differential, featuring a 3.55 gear ratio and a 7.12-inch ring gear size. This assembly is designed for the 2005-2007 Jeep Liberty models. Each Zumbrota axle assembly undergoes a rigorous remanufacturing process to ensure precision and reliability. The process includes thorough inspection of the housing for straightness, cracks, and surface wear. All internal components, such as ring and pinions, internal gears, clutches, and carriers, are fully inspected and tested. To guarantee longevity and optimal performance, all bearings, seals, crush sleeves, pinion nuts, and shims are replaced. Gears are meticulously inspected for correct tooth contact patterns and rolling torque, with backlash set precisely for proper lubrication and quiet operation. Zumbrota employs an exclusive cleaning procedure that includes hydro-blasting and sandblasting, followed by a proprietary shot-peening deep cleaning process, which restores internal and external parts to OEM finish. Units are shipped in high-density plastic totes to minimize damage during transit. The remanufacturing process ensures correct rolling torque is established using inch-pound measurements for precise setup and longevity. This assembly is backed by a 2-year limited warranty.