H3 2006

Rear Main Seal

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Removal & Installation



3.5L & 3.7L Engines

Specific to:

Hummer H3 2006-2010

  1. Remove the flywheel.
    WARNING
    Do not damage the crankshaft or seal bore.

  2.  
  3. Using a suitable tool, pry the crankshaft rear oil seal from the crankshaft rear oil seal housing.
  4.  
  5. Discard the seal.

    Click image to see an enlarged view

    Fig. Remove the seal from the oil seal housing

  6.  

To install:

  1. Lightly lubricate the crankshaft rear oil seal lip with clean engine oil.
  2.  
  3. Position the plastic installation sleeve supplied with the new seal to the crankshaft.
  4.  
  5. Use the J 44215 with the J 8092 and a hammer to install the crankshaft rear oil seal into the crankshaft rear oil seal housing. Ensure the seal is installed square. The seal will bottom out in the housing when fully installed
  6.  
  7. Install the flywheel.

    Click image to see an enlarged view

    Fig. Use Special Tool J-44215 to install the rear oil seal

  8.  

5.3L Engine

Specific to:

Hummer H3 2006-2010

  1. Remove the automatic transmi