3.27 Posi Limited Slip Differential Assembly

The Zumbrota Drivetrain RAA435-1961C-P is a remanufactured axle assembly engineered for the 7.5-inch rear end of 1999-2002 Ford Mustangs. This unit comes complete with a 3.27 gear ratio, ABS compatibility, and a Posi Limited Slip Differential for enhanced traction and performance. Each Zumbrota Drivetrain axle assembly is meticulously rebuilt to exacting quality standards, ensuring precision and long-term reliability. The rebuilding process involves a comprehensive inspection of each component for straightness, cracks, and surface wear. Internal parts, including the ring and pinion, clutches, and carriers, undergo thorough testing. To guarantee longevity and optimal performance, all bearings and seals are replaced with new ones. The gears are carefully inspected for proper tooth contact patterns and set to precise rolling torque specifications using inch-pound measurements, ensuring correct gear backlash for adequate lubrication and quiet operation. Zumbrota employs an exclusive hydro-blast rinse and sandblasting procedure on both internal and external parts. This is followed by a proprietary shot-peening deep cleaning process, which sets a high standard for remanufactured axle assemblies in the industry. This rigorous cleaning and preparation ensure a quality foundation for the rebuilt unit. Key specifications for this axle assembly include a 7.5-inch ring gear, a 3.27 gear ratio, and it is Ford-built. The axle type is semi-floating, and it includes the differential cover, but not the fluid.