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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 Front Oil Seal Replacement >> Installation Procedure

Installation Procedure

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  1. Clean the front crankshaft seal bore and the crankshaft.
  2. Lubricate the crankshaft sealing surface with clean engine oil.
  3. Place the crankshaft front oil seal onto the crankshaft.
  4. Install J 44645  to the crankshaft. See Special Tools .
  5. Press the crankshaft front oil seal onto the crankshaft using J 44645  until the tool bottoms out. See Special Tools .
    Fig 1: Pressing Crankshaft Front Oil Seal On Using J 44645
    GM663819Courtesy of GENERAL MOTORS CORP.
  6. Remove J 44645  . See Special Tools .
  7. Measure the distance between the end of the crankshaft and the oil seal.
    Fig 2: Measuring Distance Between Crankshaft End & Oil Seal
    GM663820Courtesy of GENERAL MOTORS CORP.
  8. The service measurement is 43.45-44.05 mm (1.7106-1.7342 in).
  9. Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement .
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