4.56 Ratio IFS Differential Assembly

The Zumbrota Drivetrain RAA440-1291H is a remanufactured axle assembly engineered for select 1997-2000 GM 2500 and 3500 trucks. This assembly is configured with a 4.56 gear ratio and utilizes a 9.25-inch ring gear, designed for IFS (Independent Front Suspension) systems. It is specifically for vehicles equipped with 8-lug wheels and does not feature a pin switch hole by the actuator, designated by the HC4 ratio option. Each unit undergoes a rigorous remanufacturing process. Housings are meticulously tested for surface wear and cracks, then cleaned using a state-of-the-art hydro blasting and rinsing process to restore them to an OEM finish. Internals, including the ring and pinion, gears, clutch, and carrier, are 100% inspected. Critical wear components such as bearings, seals, crush sleeves, pinion nuts, and shims are replaced with new parts. The assembly is precisely set up to establish correct rolling torque using inch-pound measurements for optimal performance and longevity. Units are shipped in high-density plastic totes to minimize transit damage. Zumbrota Drivetrain offers a core charge system where a deposit is refunded upon return of the old, salvageable part. Free shipping is available on orders over $199, and all reman parts ship for $299, with 1-2 day delivery typical for most locations. Expedited shipping options are also available at checkout.