4.30 Posi Limited Slip Differential

The Zumbrota RAA435-2048C-P is a remanufactured axle assembly specifically designed for the Dana 80 rear differential, featuring a 4.30 gear ratio and a Posi Limited Slip Differential. This axle assembly is rebuilt to stringent quality standards, prioritizing precision and reliability. Zumbrota Drivetrain thoroughly inspects each unit for straightness, cracks, and surface wear. All internal components undergo comprehensive inspection and testing, including the ring and pinion gears, internal gears, and clutches. To ensure optimal performance and longevity, all bearings and seals are replaced, and the gears are examined for ideal tooth contact patterns and set with precise rolling torque measurements. Furthermore, correct gear backlash is established to guarantee proper gear lubrication and quiet operation, while axle tubes are inspected to meet OEM standards for straightness. Zumbrota employs an exclusive hydro-blast rinse and sandblasting procedure on both internal and external parts, followed by a proprietary shot-enticed deep cleaning process, setting a high standard for axle assembly remanufacturing. Key specifications include an 11.25-inch ring gear Dana 80, a 4.30 gear ratio, and it is suitable for Dual Rear Wheels (DRW) and Cab Chassis configurations. This assembly comes with the cover included but does not include fluid.