AAM 11.5" Rear Axle Assembly 3.73 Posi Traction

The Zumbrota Drivetrain RAA435-129A-P is a meticulously remanufactured AAM 11.5-inch axle assembly, engineered specifically for the 2007-2008 Dodge Ram 3500 Cab Chassis models equipped with single rear wheels (SRW). This unit features a 3.73 gear ratio and Posi Traction, offering improved traction and performance. Each assembly undergoes a rigorous remanufacturing process. All axle tubes are inspected and straightened to OEM specifications, while housings are thoroughly tested for surface wear and cracks. Internally, all components, including ring and pinion gears, internal gears, clutches, and carriers, are subjected to a 100% inspection. Critical wear items such as bearings, seals, crush sleeves, pinion nuts, and shims are replaced to ensure longevity and reliability. The housing is hydro blasted to achieve an OEM finish, and precise rolling torque is established using inch-pound measurements for optimal setup and extended service life. This axle assembly is designed exclusively for Cab Chassis configurations and Single Rear Wheels. It explicitly does not include hubs, brakes, backing plates, or axle shafts, meaning these components must be sourced separately. The unit is compatible with both 2WD and 4WD models within the specified year range and trim.