Dana 80 Axle Assembly, 4.63 Ratio

The Zumbrota Drivetrain RAA435-1664A-P is a remanufactured complete axle assembly specifically engineered for Dana 80 axles in 1992-2002 GM 3500HD trucks. This unit comes equipped with a 4.63 gear ratio and a 11.25-inch ring gear, suitable for 2WD models that do not have Wide Track suspension and are equipped with a Posi Limited Slip Differential. Zumbrota Drivetrain prioritizes precision and reliability in their remanufacturing process. Each axle assembly undergoes a rigorous inspection of all internal components, including ring and pinions, internal gears, clutches, and carriers, ensuring they meet the highest quality standards. All bearings, seals, crush sleeves, pinion nuts, and shims are replaced with new parts. The gears are meticulously inspected for optimal tooth contact patterns and set to the correct rolling torque using inch-pound measurements for maximum precision, longevity, and quiet operation. Axle tubes are also inspected and straightened to OEM specifications. Zumbrota employs an exclusive multi-stage cleaning process that includes hydro-blast rinsing and sandblasting, followed by a proprietary shot-enticed deep cleaning. This advanced cleaning procedure restores housings to their original OEM finish, setting a benchmark for remanufactured axle assemblies. This axle assembly is designed for the following fitment: Chevrolet C3500HD 1992-2002 and GMC C3500HD 1992-2002, specifically for 2WD models without Wide Track suspension.