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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1072 (Engine Mechanical - 6.6L (2 Of 5)) >> On-Vehicle Repair Instructions >> Crankshaft Rear Oil Seal Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Pressing Crankshaft Rear Oil Seal In Using J 44642
    GM663925Courtesy of GENERAL MOTORS CORP.
  1. Ensure that the crankshaft is free of oil and dirt.
  2. Clean the seal bore in the flywheel housing.
  3. Position the crankshaft rear oil seal onto the crankshaft.
    IMPORTANT: J 44642  must be fully secured to the crankshaft to ensure proper seal depth. See Special Tools .
  4. Install J 44642  to the crankshaft. See Special Tools .
  5. Press the crankshaft rear oil seal into position using J 44642  , the tool will bottom out when the seal reaches the proper depth. See Special Tools .
  6. Remove J 44642  . See Special Tools .
  7. Install the flywheel. Refer to Engine Flywheel Replacement .
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