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1. Clean all the parts with an approved solvent. 2. Visually inspect all the parts for excessive wear or breakage. Replace the parts if necessary. 3. Inspect the pinion gear and the side gear teeth for any the following conditions: Wear Cracks Scoring Spalling 4. Inspect the thrust washers for wear. 5. Inspect the fit of the side gears on the axle shafts. 6. Inspect the differential case for cracks and scoring. 7. Inspect the thrust sleeve for excessive wear. 8. Inspect the side gear bore for scoring. If scoring is present, replace the entire differential. 9. Replace the differential if you find any damage to the case. LOCKING DIFFERENTIAL CAM UNIT ASSEMBLE (8.6 INCH AXLE) IMPORTANT: Do not replace the thrust sleeve unless it is necessary.
2008 Chevrolet Silverado 1500 2008 Driveline/Axle Rear Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 278: Exploded View Of Locking Differential Side Gear Cam Unit & Clutch Disc 1. Apply axle lubricant, GM P/N 12378261 (Canadian P/N 10953455) or equivalent meeting GM Specification 9986115, to the surface of each disc. 2. Assemble the left side or the flange-end side locking differential side gear cam unit and clutch disc assembly as follows: 1. Install the cam plate (2) to the cam side gear (1). 2. Install the carbon-faced eared disc (3). 3. Install the fuse disc (4). 4. Install the 1st non-carbon eared disc (7). 5. Install the 2nd non-carbon eared disc (8).
2008 Chevrolet Silverado 1500 2008 Driveline/Axle Rear Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
6. Install the wave washer (5). 7. Install the 1st splined disc (9). 8. Install the 3rd non-carbon eared disc (10). 9. Install the 2nd splined disc (11). 10. Install the 4th non-carbon eared disc (12). 11. Install the 3rd splined disc (13). 12. Install the 5th non-carbon eared disc (14). 13. Install the retaining ring (15). Compress the clutch disc assembly and align the teeth on the 3rd splined disc with the 14. Install the guide clips (2) to the clutch disc assembly. Apply chassis grease, GM P/N 12377985 (Canadian P/N 88901242) or equivalent, to LOCKING DIFFERENTIAL CAM UNIT ASSEMBLE (9.5 INCH AXLE) Tools Required J 29710 Differential Side Bearing Installer Assemble
2008 Chevrolet Silverado 1500 2008 Driveline/Axle Rear Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 279: Locking Differential Side Gear Cam Unit & Clutch Disc Assembly (9.5 1. Apply axle lubricant, GM P/N 12378261 (Canadian P/N 10953455) or equivalent meeting GM Specification 9986115, to the surface of each disc. 2. Assemble the left side or the flange-end side locking differential side gear cam unit and clutch disc assembly as follows: 1. Install the cam plate (2) to the cam side gear (1). 2. Install the carbon-faced eared disc (3). 3. Install the fuse disc (4). 4. Install the wave washer (5). 5. Install the 1st non-carbon eared disc (7).
2008 Chevrolet Silverado 1500 2008 Driveline/Axle Rear Drive Axle - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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