Complete Rear Axle Assembly 4.10 Posi Differential

The Zumbrota Drivetrain RAA435-1778B-P is a remanufactured complete rear axle assembly specifically built for the 1998 Dodge Ram 2500 4WD. This unit features a 4.10 gear ratio and a Posi limited-slip differential, designed to restore or enhance your vehicle's drivetrain performance and reliability. Each Zumbrota axle assembly is rebuilt to stringent quality standards. The remanufacturing process includes a comprehensive inspection of the entire assembly for structural integrity, checking for straightness, cracks, and surface wear. Internally, all components such as ring and pinions, gears, clutches, and carriers are meticulously inspected and tested. To ensure longevity and optimal performance, all bearings and seals are replaced, and gears are set with precise backlash and rolling torque measurements for correct tooth contact and lubrication. The assembly process also involves inspecting axle tubes for OEM standards of straightness. Zumbrota employs an exclusive hydro-blast rinse and sandblasting procedure on all parts, both internal and external, followed by a proprietary shot-peening deep cleaning process. This thorough cleaning and preparation method sets a high standard for axle assembly remanufacturing, ensuring a reliable and durable final product. This rear axle assembly is engineered for the 1998 Dodge Ram 2500 with 4WD. It comes with a 2-year limited warranty, offering peace of mind with your purchase. Note that a refundable core charge applies to this part, which is returned upon the receipt of your old, salvageable axle assembly.