Front Axle Assembly 4.56 Ratio

The Zumbrota RAA440-131X1 is a remanufactured front axle assembly specifically designed for GM 8.25 IFS applications, including the '07-'13 GM 1500 Pickup ('07 New Style) and SUV models with a 4.56 gear ratio and an open differential. This axle assembly is rebuilt to stringent quality standards, ensuring precision and long-term reliability. Every component, including ring and pinions, internal gears, clutches, and carriers, is thoroughly inspected and tested. All old bearings and seals are replaced with new ones. Zumbrota's remanufacturing process involves rigorous inspection of the axle for straightness, cracks, and surface wear. They also meticulously inspect gears for optimal tooth contact patterns and set correct rolling torque using precise measurements. Zumbrota employs an exclusive hydro-blast rinse and sandblasting procedure, followed by a proprietary shot-peened deep cleaning process, setting a high standard for remanufactured axle assemblies. This performance-grade axle is ideal for drivers whose lifestyle demands stronger traction, higher speeds, and increased towing capabilities, especially when running larger tires or experiencing higher horsepower. The assembly utilizes Yukon Gear & Axle components for their proven engineering quality and reputation for performance and reliability. The fluid capacity is 1.51 with a recommended non-synthetic 80w-90 fluid type, and the unit does not come pre-filled with oil.