3.73 Ratio GM 10 Bolt 8.6 Inch Axle Assembly

The Zumbrota Drivetrain RAA435-209B is a remanufactured axle assembly engineered to meet stringent quality standards. This unit is built with a 3.73 gear ratio and utilizes a GM 10 Bolt 8.6 Inch ring gear. The remanufacturing process includes a comprehensive inspection of all internal components, such as ring and pinion gears, internal gears, clutches, and carriers. This axle assembly is designed specifically for 2009-2013 GMC 1500 models that do not have the Active Brake Control option (JG4) and have a GT4 ratio option. It is crucial to note that this assembly does not include hubs, brakes, backing plates, or axle shafts, and these components must be sourced separately. The remanufacturing process ensures longevity and precision. All tubes are inspected and straightened to OEM specifications, and housings are tested for wear and cracks. Critical wear items like bearings, seals, crush sleeves, pinion nuts, and shims are replaced 100%. The housings undergo a hydro blasting process to restore them to an OEM finish, and correct rolling torque is established using inch-pound measurements for optimal setup and extended service life.