Complete Axle Assembly, 3.42 Gear Ratio

The Zumbrota Drivetrain RAA435-2118D is a remanufactured complete axle assembly, meticulously rebuilt to exacting standards of precision and reliability. This assembly is engineered for GM 8.0" rear ends and specifically fits 2006-2009 GMC Envoy and Chevrolet Trailblazer models with a 3.42 gear ratio (GU6). It is designed without Posi Traction. Each Zumbrota axle assembly undergoes a rigorous inspection process. This includes checks for straightness, cracks, and surface wear on housings. All internal components, such as ring and pinions, internal gears, clutches, and carriers, are fully inspected and tested. Critical wear items like bearings and seals are replaced as a standard procedure. The gears are examined for optimal tooth contact patterns and set to precise rolling torque using inch-pound measurements, ensuring proper setup, longevity, and quiet operation. Zumbrota employs an exclusive hydro-blast rinse and sandblasting procedure for both internal and external parts, followed by a proprietary shot-peening deep cleaning process. This advanced cleaning method sets a high standard for remanufactured axle assemblies, restoring housings to an OEM finish. The product specifications confirm an 8-inch ring gear size, compatibility with 17-inch wheels, and notes that hubs, brakes, backing plates, or axle shafts are not included with this assembly. It comes with a 2-year limited warranty.