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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 237 (Automatic Transmission - 4L80-E/4L85-E (Service & Replacement)) >> Repair Instructions >> Transmission Extension Housing Rear Oil Seal Replacement >> Installation Procedure

Installation Procedure

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  1. Lubricate the inside diameter of the new seal with J 36850. 
  2. Use the J 41505  (1) with a soft faced mallet to install the seal (2).
  3. Install the seal (2) to the extension housing (3).
  4. Install the propeller shaft. Refer to PROPELLER SHAFT REPLACEMENT - ONE PIECE or PROPELLER SHAFT REPLACEMENT - TWO PIECE .
  5. Remove the drain pan and lower the vehicle.
  6. Fill the transmission to the proper level with approved fluid.
    Fig 1: Installing Rear Oil Seal Using J 41505
    G02424587Courtesy of GENERAL MOTORS CORP.
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