Sierra 1500 4WD V8-4.8L VIN V (2004)
2. For the 9.5 inch and the 10.5 inch axles, remove the rear axle fill plug.
3. For the 11.5 inch axle, remove the fill plug.
4. Remove the rear axle drain plug.
5. Drain the lubricant into a suitable container.
6. Inspect the drain plug for excessive metal particle accumulation. This accumulation is symptomatic of extreme wear.
7. Clean the drain plug.
Installation Procedure
1. Notice: Refer to Fastener Notice in Service Precautions.
Install the rear axle drain plug.
