Chevrolet Pontiac (Power - Disc/Drum) Differential - Rear

This remanufactured axle assembly from Zumbrota Drivetrain (Yukon) is designed for a 3.42 gear ratio with G80 Posi Traction (limited slip differential). It's a direct replacement, ensuring proper fit and function. Zumbrota Drivetrain Axle Assemblies undergo rigorous rebuilding to high-quality standards. This includes inspection for straightness, cracks, and surface wear, along with full inspection and testing of internal components (ring & pinions, internal gears, clutches, and carriers). All bearings & seals are replaced. Gears are inspected for optimal tooth contact patterns and correct rolling torque, and backlash is set for proper lubrication and quiet operation. Axle tubes are inspected for OEM straightness. The remanufacturing process involves an exclusive hydro-blast rinse, sandblasting, and proprietary shot-enticed deep cleaning.