Remanufactured Rear Axle Assembly 3.42 Open Differential

The Zumbrota RAA435-1936B is a remanufactured rear axle assembly engineered for GM 7.5" differentials found in 1998-2005 Chevrolet S10 Blazers and GMC S15 Jimmys equipped with 4WD. This specific assembly features a 3.42 gear ratio and an open differential, and it is explicitly stated not to be compatible with ZR2 models or those with Posi Traction. Each Zumbrota axle assembly is rebuilt to exacting standards, ensuring precision and reliability. The remanufacturing process involves a rigorous inspection of all components, including the housing for straightness and integrity, and all internal parts such as ring and pinions, internal gears, clutches, and carriers. Crucially, all bearings, seals, crush sleeves, pinion nuts, and shims are replaced with new parts. The gears are meticulously set to achieve optimal tooth contact patterns, correct rolling torque measured in inch-pounds, and precise backlash for longevity and quiet operation. Zumbrota employs a proprietary cleaning process that includes hydro-blasting, rinsing, and sandblasting, followed by a deep cleaning treatment. This ensures that housings are restored to OEM finish and are free from wear and cracks before assembly. The axle tubes are inspected and straightened to meet OEM specifications. Please note that this assembly does not include hubs, brakes, backing plates, or axle shafts. The cover is included, but fluid is not.