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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1585 (Rear Drive Axle) >> Repair Instructions >> Differential Oil Replacement (11.5 Inch Axle) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
    2. Fig 1: Rear Axle Fill Plug (11.5 Inch Axle)
    GM665917Courtesy of GENERAL MOTORS CORP.
  2. Remove the fill plug.
    3. Fig 2: Rear Axle Drain Plug
    GM390113Courtesy of GENERAL MOTORS CORP.
  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.
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