Rear Axle Assembly, 9.25" Ring Gear, 3.92 Ratio

The Zumbrota Drivetrain RAA435-10080C is a remanufactured rear axle assembly designed for 2019-2025 Ram 1500 New Body Style trucks equipped with 6-lug wheels. This unit features a robust ZF 9.25-inch ring gear and a 3.92 gear ratio, configured as an open differential. Each axle assembly from Zumbrota Drivetrain is rebuilt with meticulous attention to precision and reliability. The remanufacturing process includes thorough inspection of the housing for straightness, cracks, and surface wear, ensuring it meets OEM standards. All internal components, such as ring and pinions, gears, clutches, and carriers, undergo comprehensive inspection and testing. Crucially, all bearings and seals are replaced with new ones, guaranteeing optimal performance and longevity. Zumbrota employs advanced cleaning techniques, including an exclusive hydro-blast rinse and sandblasting procedure, followed by a proprietary shot-enticed deep cleaning process for both internal and external parts. This ensures each housing is restored to an OEM finish. The setup involves precise gear backlash adjustments for proper lubrication and quiet operation, with gears inspected for optimal tooth contact patterns and rolling torque measured in inch-pounds for accuracy. This specific axle assembly does not include hubs, brakes, or axle shafts. It is built to order and comes with a 2-year limited warranty.