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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Mechanical - 6.6L - On Vehicle Repair Instructions) >> On-Vehicle Repair Instructions >> Crankshaft Rear Oil Seal Replacement >> Installation Procedure

Installation Procedure

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  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 .
    Fig 1: Pressing Crankshaft Rear Oil Seal In Using J 44642
    GM663925Courtesy of GENERAL MOTORS CORP.
  6. Remove J 44642  . See Special Tools .
  7. Install the flywheel. Refer to Engine Flywheel Replacement (Automatic Transmission)  or Engine Flywheel Replacement (Manual Transmission) .
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