Sierra 1500 2WD V8-5.3L Hybrid (2004)
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.
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Tighten the rear axle drain plug to 33 Nm (24 ft. lbs.).
2. Fill the rear axle. Use the proper fluid.