Dana 80 Posi Limited Slip Axle Assembly

The Zumbrota Drivetrain RAA435-1779A is a remanufactured axle assembly designed for the Dana 80 differential, specifically for 1994 Ram 2500 4x4 models with a Posi Limited Slip Differential and a 3.54 gear ratio. This assembly undergoes a rigorous remanufacturing process to ensure the highest standards of precision and reliability. Each unit is subjected to a comprehensive inspection, checking for housing straightness, cracks, and surface wear. All internal components, including ring and pinions, gears, clutches, and carriers, are fully inspected and tested. As part of the rebuild, all bearings, seals, crush sleeves, pinion nuts, and shims are replaced with new parts. Zumbrota employs a state-of-the-art hydro-blasting and rinsing process to clean housings, restoring them to an OEM finish, followed by a proprietary deep cleaning procedure. Precision is paramount in the remanufacturing of this axle assembly. Gears are meticulously inspected for optimal tooth contact patterns, and rolling torque is precisely set using inch-pound measurements to ensure longevity and proper lubrication. Correct gear backlash is also set to guarantee quiet operation and adequate gear lubrication. The axle type is full floating, and a differential cover is included, though fluid is not. The specific gear ratio is 3.55.