GM 8.6" Rear Axle Assembly 3.73 Posi LSD

The Zumbrota Drivetrain RAA435-2240B-P is a completely remanufactured rear axle assembly engineered for GM 8.6" applications, specifically fitting 2005 and newer Chevrolet Silverado models equipped with drum brakes and a 3.73 Posi Limited Slip Differential. This axle assembly undergoes a rigorous remanufacturing process to meet high standards of precision and reliability. Zumbrota Drivetrain inspects all housings for surface wear and cracks, and thoroughly tests all internal components, including ring and pinions, gears, clutches, and carriers. To ensure longevity and quiet operation, all bearings, seals, crush sleeves, pinion nuts, and shims are replaced. The gears are meticulously inspected for optimal tooth contact patterns and set to the correct backlash, with rolling torque established using inch-pound measurements for precise setup. Axle tubes are straightened to meet OEM specifications, and Zumbrota employs an exclusive hydro-blast rinse and sandblasting procedure, followed by a proprietary shot-peened deep cleaning process. This comprehensive cleaning method ensures all cases are returned to their original OEM finish, setting a high standard for remanufactured axle assemblies. This is a special order item. To ensure you receive the correct product for your application, it is crucial to provide your vehicle information, including year, make, model, and VIN#, using the SureFit Order Form or by contacting customer care. A $400.00 core charge applies, which is refundable upon return of your old, salvageable part.