Sierra 1500 4WD V8-5.3L VIN B (2005)
Fluid - Differential: Service and Repair
Front Drive Axle
Lubricant Level Inspection
Lubricant Level Inspection - Front Drive Axle
1. Raise the vehicle. Refer to Vehicle Lifting.
2. Make sure the vehicle is level.
3. Inspect the front axle for leaks. Repair as necessary.
4. Clean the area around the front axle fill plug.
5. Remove the front axle fill plug (1).
6. Inspect the oil level.
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For the 8.25 inch axle, the oil level should be between 12-16 mm (0.50-0.625 inch) below the fill plug opening.
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For the 9.25 inch axle, the oil level should be between 0-6 mm (0-0.25 inch) below the fill plug opening.
7. If the level is low, add oil until the level is between 12-16 mm (0.50-0.625 inch) for the 8.25 inch axle or 0-6 mm (0-0.25 inch) for the 9.25 inch
axle. Use the correct fluid.
8. Install the fill plug.
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Tighten the plug to 33 Nm (24 ft. lbs.).
Notice: Refer to Fastener Notice in Service Precautions.
9. Lower the vehicle.
Lubricant Replacement
Lubricant Replacement - Front Drive Axle
Removal Procedure
1. Raise the vehicle. Refer to Vehicle Lifting.
2. Remove the front differential carrier shield, if equipped.
3. Clean the area around the front axle fill plug and the drain plug.
4. Remove the fill plug.
5. Remove the drain plug.
6. Drain the fluid from the front differential carrier assembly.
