Remanufactured Complete Axle Assembly 3.73 Ratio

The Zumbrota Drivetrain RAA435-258B is a remanufactured complete axle assembly featuring an AAM 11.5-inch ring gear and a 3.73 gear ratio, specifically designed for 2010-2011 Dodge Ram 2500 4x4 models with Chrysler axles. Each axle assembly is meticulously rebuilt to high standards, undergoing thorough inspection for straightness, cracks, and surface wear. All internal components, including ring and pinions, internal gears, clutches, and carriers, are inspected and tested. Crucially, all bearings and seals are replaced with new ones. The gear setup includes inspection for optimal tooth contact patterns, correct rolling torque using inch-pound measurements for precision and longevity, and proper gear backlash setting for lubrication and quiet operation. Axle tubes are inspected and straightened to OEM specifications. Zumbrota employs an exclusive hydro-blast rinse and sandblasting procedure on internal and external parts, followed by a proprietary shot-enticed deep cleaning process, setting a high standard for axle assembly remanufacturing. The AAM 11.5" axle assembly is for 4WD models and does not include hubs, brakes, backing plates, or axle shafts. It is built without posi-traction. Note: One source indicates that part number RAA435-1658B (a related axle assembly) fits dually models but does not fit Wide Track models; while this specific exclusion isn't stated for RAA435-258B, it's advised to verify fitment carefully.