Ford 10.25" Axle Assembly w/ 4.11 Posi LSD

The Zumbrota RAA435-1497B-P is a remanufactured axle assembly designed for Ford 10.25" differentials, specifically for F350 models from 1987-1997. This assembly features a 4.11 gear ratio and a Posi Limited Slip Differential (LSD), offering enhanced traction and performance. Zumbrota Drivetrain emphasizes quality and reliability in their remanufacturing process. Each axle assembly undergoes a thorough inspection for straightness, cracks, and surface wear. Critical internal components, including the ring and pinion, internal gears, clutches, and carriers, are 100% inspected and tested. To ensure longevity and optimal performance, all bearings, seals, crush sleeves, pinion nuts, and shims are replaced. Gears are meticulously inspected for proper tooth contact patterns, and correct rolling torque is established using inch-pound measurements for precise setup. Gear backlash is set to guarantee adequate lubrication and quiet operation. Zumbrota employs a rigorous cleaning procedure that includes hydro-blasting and sandblasting for both internal and external parts, followed by a proprietary deep cleaning process. This ensures that all housings are returned to OEM finish standards and are free from surface wear and cracks. The axle tubes are also inspected to ensure they meet OEM specifications for straightness. This specific axle assembly is a full-floating type and includes the cover, but does not include fluid. The gear ratio is 4.10. This product is a special order item and may have return or cancellation restrictions.