Sierra Classic 2500 4WD V8-6.0L (2007)
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.
Install the rear axle drain plug.
Tighten the rear axle drain plug to 33 Nm (24 ft. lbs.).
2. Fill the rear axle. Use the proper fluid. Refer to Approximate Fluid Capacities and Fluid and Lubricant Recommendations.
