Sierra 3500 4WD V8-6.6L DSL Turbo VIN 2 (2004)
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
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 27 Nm (20 ft. lbs.).
2. Fill the rear axle. Use the proper fluid.
3. Install the rear axle fill plug.
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Tighten the rear axle fill plug to 21 Nm (15 ft. lbs.).
4. Lower the vehicle.
9.5, 10.5, and 11.5 Inch Axles
Lubricant Replacement - Rear Drive Axle (9.5, 10.5, and 11.5 Inch Axles)
Removal Procedure
1. Raise the vehicle. Refer to Vehicle Lifting.