GM 8.0" 3.73 GT4 G80 Remanufactured Axle

The Zumbrota Drivetrain RAA435-2118B-P is a remanufactured axle assembly specifically built for GM 8.0" vehicles, including the 2002-2005 GMC Envoy and Chevrolet Trailblazer models. This unit comes equipped with a 3.73 gear ratio, an AAM 8-inch ring gear, and a G80 Posi traction differential, ideal for enhancing off-road capability and on-road performance. During the remanufacturing process, Zumbrota Drivetrain ensures all components meet stringent quality standards. This includes inspecting and straightening axle tubes to OEM specifications, testing housings for wear and cracks, and conducting a thorough inspection of all internal parts such as ring and pinion gears, internal gears, clutches, and carriers. Additionally, all bearings, seals, crush sleeves, pinion nuts, and shims are replaced to guarantee longevity and precise setup. The housings undergo a hydro blasting and rinsing process to restore them to an OEM finish, and correct rolling torque is established using inch-pound measurements. It is important to note that this axle assembly does not include hubs, brakes, backing plates, or axle shafts. These components would need to be sourced separately to complete the installation. The technical specifications confirm a 3.73 ratio with a GT4 option and a 113-inch wheelbase.