Rear Axle Assembly 3.31 Posi Traction

The Zumbrota Drivetrain RAA435-2027A-P is a remanufactured complete axle assembly, meticulously rebuilt to ensure precision and reliability for your Ford 8.8 Inch rear end. This unit boasts a 3.31 gear ratio and Posi Traction for enhanced performance, along with 14mm wheel studs. It is engineered for the 2000-2002 Ford Expedition, and compatibility can be confirmed by checking tag numbers S802L, S802M, S821L, or S821M. It's important to note that this assembly does not include hubs, brakes, backing plates, or axle shafts, and these components will need to be sourced separately. Zumbrota Drivetrain's remanufacturing process involves a comprehensive inspection of all parts. Housings are checked for straightness, cracks, and surface wear, while internal components like ring and pinions, gears, clutches, and carriers undergo a 100% inspection. All bearings, seals, crush sleeves, pinion nuts, and shims are replaced with new parts. The process includes an exclusive hydro-blast rinse, sandblasting, and a proprietary shot-peening deep cleaning procedure, ensuring the highest quality standards. Gears are set for optimal tooth contact, correct rolling torque (measured in inch-pounds), and proper backlash for longevity and quiet operation.