GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 652614  Size: SH
  1. Remove the transfer case. Refer to Transfer Case Assembly Replacement .
  2. Lower the transmission slightly.
  3. Remove the transfer case adapter bolts.
  4. Remove the transfer case adapter.
  5. Remove the transfer case adapter seal.

  6. Object Number: 654219  Size: SH
  7. Remove the transfer case gasket, if necessary.

Installation Procedure


    Object Number: 709077  Size: SH

    Important: Always use a new gasket and seal for the transfer case and the transfer case adapter. Do not use any type of sealant or adhesive in place of or with the gasket or the seal.

  1. Install a NEW transfer case adapter seal.
  2. Important: The transfer case adapter must be installed so that the adapter is evenly seated to the transmission before installing the retaining nuts.

  3. Position the transfer case adapter.

  4. Object Number: 709158  Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  5. Install the transfer case adapter bolts.
  6. Tighten
    Tighten the bolts to 50 N·m (37 lb ft).


    Object Number: 654219  Size: SH

    Important: When installing the gasket to the transfer case, make sure that the yellow printing on the gasket is facing toward the transfer case (away from the transmission). The locating tab on the gasket should always be pointing up.

  7. Install the new transfer case gasket.
  8. Install the transfer case. Refer to Transfer Case Assembly Replacement .