Remanufactured Axle Assembly 4.10 Ratio 10.5" Ring Gear Posi-Traction

The Zumbrota Drivetrain RAA435-1660C-P is a remanufactured axle assembly engineered for 1990-1991 GM 3500 Pickup trucks equipped with a 4.10 gear ratio, 10.5-inch ring gear, and GM 14-bolt pattern. This assembly is built for 2WD DRW (Dual Rear Wheel) configurations and features a G80 Posi-Traction (LSD) limited-slip differential for enhanced traction. This axle assembly has undergone a comprehensive remanufacturing process to ensure quality and durability. Zumbrota Drivetrain inspects all tubes, straightening them to meet OEM specifications, and rigorously tests housings for surface wear and cracks. A 100% inspection is performed on all internal components, including the ring and pinion gears, clutch packs, and carrier. To guarantee performance and longevity, all bearings, seals, crush sleeves, pinion nuts, and shims are replaced. The housings are meticulously cleaned using a state-of-the-art hydro blasting and rinsing process, restoring them to an OEM finish. Furthermore, the correct rolling torque is established using precise inch-pound measurements for optimal setup. Technical notes specify that this assembly includes a 4.10 ratio with a GM 14 Bolt 10.5 Inch Ring Gear, Dual Rear Wheels, Ratio Option GT5, and G80 Posi Traction. It is important to note that this assembly does not include hubs, brakes, backing plates, or axle shafts, which must be supplied separately. A refundable core charge of $1,000.00 applies to this remanufactured part. This deposit is returned upon the receipt of your old, salvageable part for recycling or rebuilding. Please refer to the provided core return instructions for details.