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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 156 (Transfer Case - BW 4485-Nr3 AWD) >> Repair Instructions >> Transfer Case Output Shaft Seal Replacement - Front >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Cadillac Escalade EXT, 2007 Cadillac Escalade ESV, and 2007 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Removing Front Output Shaft Seal With Flathead Screwdriver
    GM1728963Courtesy of GENERAL MOTORS CORP.
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the transfer case shield, if equipped. Refer to Transfer Case Shield Replacement .
  3. Remove the front propeller shaft. Refer to Front Propeller Shaft Replacement .
    IMPORTANT: The front output shaft seal is a two piece internal seal. The inner seal race is a force fit on the front output shaft.
  4. Remove the front output shaft seal by inserting a flat-tipped screwdriver behind the inner race of the seal.
  5. Pry the inner seal race forward.
    6. Fig 2: View Of Inner Seal Race & Front Output Shaft
    GM1728906Courtesy of GENERAL MOTORS CORP.
  6. Using a small pry bar, move the inner seal race forward on the front output shaft.
  7. Remove the inner seal race from the front output shaft.
    8. Fig 3: Removing Output Shaft Seal From Transfer Case With Flathead Screwdriver
    GM1728914Courtesy of GENERAL MOTORS CORP.
  8. Insert a flat-tipped screwdriver or small pry bar into the space between the lip of the outer race of the seal and the transfer case.
  9. Remove the remaining part of the output shaft seal from the transfer case.
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