GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2008 🢒 CTS 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Transfer Case Assembly Replacement

Removal Procedure
  1. Drain the transfer case fluid, if necessary. Refer to Transfer Case Fluid Replacement .
  2. Remove the exhaust system. Refer to Exhaust System Replacement .
  3. Remove the rear propeller shaft. Refer to Rear Propeller Shaft Replacement .

    4. Object Number: 830398 Size: SH
  4. Support the transmission with a suitable screw jack and a block of wood.
  5. Remove the transmission mount-to-body bolts.
  6. Disconnect the shift linkage at the control lever. Refer to Shift Control Linkage Replacement .
  7. Using the jack, lower the transmission enough to access the transmission mount-to-transfer case mounting bolts.

    8. Object Number: 888315 Size: SH
  8. Remove the vent hose from the transmission mount assembly.
  9. Remove the transmission mount-to-transfer case mounting bolts.
  10. Remove the transmission mount assembly from the vehicle.
  11. Remove the front propeller shaft. Refer to Front Propeller Shaft Replacement .
  12. Disconnect the electrical connectors from the transfer case.

    13. Object Number: 1979770 Size: SH

    Important: Do not remove the jack and block of wood from under the transmission.

  13. Using another suitable adjustable jack, support the transfer case.
  14. Remove the transfer case bolts (1-6).
  15. Remove the transfer case dampener (7).
  16. Remove the transfer case (8).
  17. Remove the transfer case gasket (9).

Installation Procedure

    Object Number: 1979770 Size: SH
  1. Apply grease GM P/N 1051344 (Canadian P/N 993037), or equivalent, on the input splines starting from the front edge to 10 mm inward in a continuous pattern around the inside diameter (ID) of the splines to completely fill the splines.
  2. Install the transfer case gasket (9).
  3. Install the transfer case (8).
  4. Install the transfer case dampener (7).

    5. Notice: Refer to Fastener Notice in the Preface section.

  5. Install the transfer case bolts (1-6).

    6. Tighten
    Tighten the case-to-transmission bolts to 60 N·m (44 lb ft).

  6. Remove the adjustable jack from the transfer case.
  7. Connect the electrical connectors to the transfer case.

    8. Object Number: 901932 Size: SH
  8. Install the transmission mount assembly. Refer to Transmission Mount Replacement .
  9. Install the vent hose to the transmission mount assembly.
  10. Remove the jack and block of wood from under the transmission.
  11. Connect the shift linkage to the control lever. Refer to Shift Control Linkage Replacement .
  12. Install the front propeller shaft. Refer to Front Propeller Shaft Replacement .
  13. Install the rear propeller shaft. Refer to Rear Propeller Shaft Replacement .
  14. Install the exhaust system. Refer to Exhaust System Replacement .
  15. Refill the transfer case with fluid. Refer to Transfer Case Fluid Replacement .