Remanufactured Axle Assembly, 3.73 Ratio

The Zumbrota Drivetrain RAA435-218 is a remanufactured axle assembly, engineered for GM 11.5-inch differentials with a 3.73 gear ratio. This full-floating axle assembly is compatible with 2009-2010 GM 2500 models that feature active brakes. It is designed as a direct replacement, ensuring a precise fit and reliable performance for your vehicle's drivetrain. Each Zumbrota axle assembly is rebuilt to stringent quality standards. The remanufacturing process involves a comprehensive inspection of all components, including checks for housing straightness, cracks, and surface wear. Internal parts such as ring and pinions, gears, clutches, and carriers are rigorously tested. To guarantee optimal performance and longevity, all bearings, seals, crush sleeves, pinion nuts, and shims are replaced with new parts. The assembly process meticulously sets correct gear backlash for proper lubrication and quiet operation. Gears are inspected for optimal tooth contact patterns and rolling torque, measured in inch-pounds for precision. Zumbrota employs an exclusive hydro-blast rinse and sandblasting procedure, followed by a proprietary shot-peened deep cleaning process, to restore housings to an OEM finish and ensure superior durability. Note: Some sources indicate that the '09 GM Silverado 2500 w/ACTIVE BRAKE may not fit, or that the selected vehicle does not fit. Please verify fitment carefully before purchase.