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CONSTANT NOISE Checks Action Warped ring gear Replace the ring gear. Refer to Drive Pinion and Ring Gear Drive Pinion and Ring Gear Replacement (10.5 Inch . Loose differential case bolts Tighten differential case bolts to specifications. Refer to Fastener Tightening Specifications. Cause Correction DEFINITION: A noise heard in the rear axle during all driving conditions. This noise may Replace the pinion and the ring gear. Refer to Drive Pinion Flat spot on the pinion Replace the bearing. Refer to Drive Pinion Bearings Worn pinion splines Replace the pinion. Refer to Drive Pinion and Ring Gear Low oil level Fill the fluid level to specifications with the proper lubricant. Wrong or poor grade oil Drain and refill the system with the proper lubricant. Refer to Excessive pinion to ring gear Adjust the pinion to ring gear backlash. Refer to Backlash Adjust the pinion bearings preload. Refer to Pinion Depth
2008 Chevrolet Silverado 1500 2008 Driveline/Axle Rear Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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