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Home >> Chevrolet >> 2011 >> Suburban C2500 >> Repair and Diagnosis >> External Pages >> Different car >> Section 1757 (Transfer Case - BW 4485-Nr3) >> Repair Instructions - On Vehicle >> Front Output Shaft Seal Replacement >> Removal Procedure

Removal Procedure

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    Fig 1: Removing Front Output Shaft Seal
    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: Inner Seal Race And 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 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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