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General condition of all parts during disassembly and inspection Classify the failure with the aid of the illustrations. Determine the cause. Make all repairs following recommended procedures. Abrasive Roller Wear Fig. 15: Identifying Abrasive Roller Wear Pattern on the races and the rollers caused by fine abrasives. Clean all of the parts and the Abrasive Step Wear
2008 Chevrolet Silverado 1500 2008 Driveline/Axle Rear Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 16: Identifying Abrasive Step Wear Pattern on the roller ends caused by fine abrasives. Clean all of the parts and the housings. Check Galling
2008 Chevrolet Silverado 1500 2008 Driveline/Axle Rear Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 17: Identifying Galling Metal smears on the roller ends due to overheating, lubricant failure, or lubricant overload. Etching
2008 Chevrolet Silverado 1500 2008 Driveline/Axle Rear Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 18: Identifying Etching Bearing surfaces appear gray or grayish black in color, with related etching away of material Bent Cage
2008 Chevrolet Silverado 1500 2008 Driveline/Axle Rear Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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