Dana 30 Rear Axle Assembly 3.73 Ratio

The Zumbrota Drivetrain RAA434-1894D is a remanufactured axle assembly for the Dana 30 differential, featuring a 3.73 ratio and designed for the 1998 Jeep Grand Cherokee equipped with the 242 transfer case. This assembly includes a 7.12-inch ring gear and utilizes both a CV-type front driveshaft yoke and a U-joint style axle yoke. Zumbrota Drivetrain prioritizes precision and reliability in their remanufacturing process. Each axle assembly is meticulously inspected for straightness, cracks, and surface wear. All internal components, including ring and pinions, gears, and clutches, are thoroughly inspected and tested. To ensure optimal performance and longevity, all bearings and seals are replaced. The gears are carefully examined for proper tooth contact patterns and correct rolling torque, with precise setup achieved using inch-pound measurements. Gear backlash is set to guarantee adequate gear lubrication and quiet operation. Furthermore, axle tubes are inspected to confirm they meet OEM standards for straightness. The remanufacturing process at Zumbrota includes an exclusive hydro-blast rinse and sandblasting procedure for both internal and external parts. This is followed by a proprietary shot-peened deep cleaning method, which sets a high standard for remanufactured axle assemblies. This thorough approach aims to restore the axle assembly to its peak performance and durability.