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Fig. 27: Identifying Cracked Inner Race Cracked race due to improper fit, cocking, or poor bearing seats. Replace the bearing. Correct Fatigue Spalling
2008 Chevrolet Silverado 1500 2008 Driveline/Axle Rear Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 28: Identifying Fatigue Spalling Flaked surface metal that results from fatigue. Replace the bearing. Clean all related parts. Brinelling
2008 Chevrolet Silverado 1500 2008 Driveline/Axle Rear Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 29: Identifying Brinelling Surface indentations in the race way caused by the rollers under impact loading or caused from REAR AXLE LUBRICANT LEAK DIAGNOSIS Rear axle lubricant leaks can occur at the following locations: Axle tube to differential carrier housing joint Axle shaft oil seal Axle housing porosity Differential housing cover gasket
2008 Chevrolet Silverado 1500 2008 Driveline/Axle Rear Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Drain plug Fill plug Pinion yoke oil seal Vent tube Determining the Cause While most rear axle leaks may be easy to find, determining the cause may not be. A thorough Oil Seals Lubricant leaks from a oil seal may be caused by any of the following: An improperly installed seal A distorted seal A worn seal A worn shaft A brittle seal lip A hardened seal lip To determine the actual cause of the leak, clean the area around the leak. Observe the area of the Gaskets A leak at a gasket is usually caused by a poor fit of the components on each side of the gasket Rear Axle Housing Rear axle housing lubricant leaks usually occur at the following locations: Drain Plug
2008 Chevrolet Silverado 1500 2008 Driveline/Axle Rear Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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