GM Service Manual Online
For 1990-2009 cars only

Transfer Case Adapter Replacement M30

Removal Procedure

  1. Remove the transfer case assembly. Refer to Transfer Case Assembly Replacement .

  2. Object Number: 747102  Size: SH

    Important: The transmission mount DOES NOT have to be removed to perform the following service procedure.

  3. Remove the 2 transmission mount bolts.

  4. Object Number: 747100  Size: SH
  5. Position a transmission jack under the transmission.
  6. Lift the transmission just high enough to remove the transfer case adapter.

  7. Object Number: 1313619  Size: SH
  8. Remove the transfer case adapter mounting bolts.
  9. Remove the transfer case adapter from the transmission.
  10. Remove the transfer case adapter seal.

Installation Procedure


    Object Number: 1313619  Size: SH
  1. Lightly lubricate the transfer case adapter seal with clean transmission fluid.
  2. Position the NEW seal to the transfer case adapter.
  3. Install the transfer adapter to the transmission.
  4. Notice: Refer to Fastener Notice in the Preface section.

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


    Object Number: 747102  Size: SH
  7. Lower the transmission to the transmission mount.
  8. Install the transmission mount bolts.
  9. Tighten
    Tighten the transmission mount bolts to 50 N·m (37 lb ft).

  10. Remove the transmission jack.
  11. Install the transfer case assembly. Refer to Transfer Case Assembly Replacement .