AAM 11.5" 3.73 Posi-Traction Rear Axle Assembly

The Zumbrota Drivetrain RAA435-2162A-P is a remanufactured axle assembly designed for enhanced drivetrain performance and reliability. This unit features an AAM 11.5-inch ring gear and a 3.73 gear ratio, incorporating Posi-Traction for improved grip and handling. Zumbrota Drivetrain emphasizes precision and longevity in their remanufacturing process. Each axle assembly is meticulously inspected for structural integrity, including straightness, cracks, and surface wear. All internal components, such as ring and pinions, gears, clutches, and carriers, are subjected to rigorous inspection and testing. To ensure optimal performance, all bearings and seals are replaced, and gears are set to precise backlash specifications for proper lubrication and quiet operation. The housing is cleaned using an advanced hydro-blast and sandblasting procedure, followed by shot-peening, restoring it to OEM finish standards. Key specifications include a 3.73 gear ratio, an 11.5-inch AAM ring gear, and a full-floating axle type. The differential cover is included, but fluid is not. All internal components undergo 100% inspection, and all housings are tested for wear and cracks, with axle tubes verified and straightened to OEM specifications. This axle assembly is specifically confirmed to fit the 2003 Dodge Ram 3500 4WD Dual Rear Wheel (DRW) models. Ensure your vehicle matches these specifications for proper fitment.