Sierra 2500 Denali 2WD V8-6.0L (2011)
2. Remove the fill plug.
3. Remove the rear axle drain plug.
4. Drain the lubricant into a suitable container.
5. Inspect the drain plug for excessive metal particle accumulation. This accumulation is symptomatic of extreme wear.
6. Clean the drain plug.
Installation Procedure
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).
1. Install the rear axle drain plug and tighten to 33 Nm (24 lb ft).
2. Fill the rear axle. Use the proper fluid. Refer to Approximate Fluid Capacities (See: Specifications) and Fluid and Lubricant Recommendations
(See: ) in Maintenance and Lubrication.
3. Install the fill plug and washer and tighten to 33 Nm (24 lb ft).
4. Lower the vehicle.
