Dana 80 Axle Assembly 4.10 Posi-Traction

The Zumbrota Drivetrain RAA435-1858B is a remanufactured Dana 80 axle assembly designed for 1996-1999 Dodge Ram 3500 Cab & Chassis trucks. This unit features a 4.10 gear ratio and a Posi-Traction limited-slip differential, ensuring reliable power delivery. Each Zumbrota axle assembly is meticulously rebuilt to exacting standards. The rebuilding process includes a comprehensive inspection of all internal components, such as ring and pinions, clutches, and carriers. All bearings, seals, crush sleeves, pinion nuts, and shims are replaced with new parts. The gears are meticulously set for optimal tooth contact patterns and precise rolling torque, using inch-pound measurements to ensure longevity and quiet operation. Backlash is set correctly for proper gear lubrication and smooth performance. Axle tubes are inspected and straightened to OEM specifications. Zumbrota employs an exclusive hydro-blast rinse and sandblasting procedure, followed by a proprietary shot-enticed deep cleaning process on all internal and external parts. This rigorous cleaning ensures the housing is restored to OEM finish and meets stringent quality standards. This specific axle assembly is configured for Cab & Chassis models and includes Posi-Traction. It is important to note that this assembly does not include hubs, brakes, backing plates, or axle shafts, which must be sourced separately.