Zumbrota Performance Axle Rear Axle Assembly GM 8.6 09- 14 GM 1500 SUV 4.56 Ratio Open RAA435-172X2

Zumbrota Performance Axles are engineered for enhanced performance, traction, higher speeds, and heavier towing capabilities beyond OE replacement standards. They are ideal for vehicles with bigger tires, higher horsepower, or those that frequently tow boats or trailers. These assemblies feature aftermarket gear upgrades, custom options for Limited Slip Differentials (like the Duragrip) and Lockers, and high-quality nodular steel ZPA differential covers for superior strength and protection. All tubes are inspected and straightened to OEM specifications, and housings are tested for surface wear and cracks. Internal components including ring & pinions, internal gears, clutches, and carriers are thoroughly inspected and tested. All bearings and seals are replaced. Gears are precisely set up for optimal tooth contact patterns and correct rolling torque, ensuring longevity. Zumbrota utilizes an exclusive hydro-blast rinse and sandblasting procedure on internal and external parts, followed by a proprietary shot-enticed deep cleaning, setting the standard for Axle assembly remanufacturing. Yukon Gear & Axle products are chosen for their engineering quality and reputation in performance and reliability.