GM Service Manual Online
For 1990-2009 cars only

Transfer Case Removal F4WD Only

Tools Required

    • J 6125-1B Slide Hammer
    • J 44467 Output Shaft Assembly Remover and Installer
    • J 44755 Holding Fixture

    Object Number: 630805  Size: SH

    Important: Transmission oil circulates between the transmission assembly and the transfer case. In situations where transmission related failures circulate debris into the transfer case, the transfer case must be disassembled, cleaned, and inspected for damage. Refer to Internal Components Cleaning and Inspection .

  1. Remove the drive shaft retaining ring (509).

  2. Object Number: 630806  Size: SH
  3. Rotate the transaxle 90 degrees.
  4. Remove the transfer case lower brace bolt (904).

  5. Object Number: 630807  Size: SH
  6. Rotate the transaxle 90 degrees.
  7. Remove the transfer case side brace bolts (903). Remove the side brace (905).

  8. Object Number: 630808  Size: SH
  9. Remove the transfer case to case bolts (907, 909, 910).

  10. Object Number: 630811  Size: SH

    Caution: This component weighs approximately 60 lbs. Personal injury may result if you lift the component improperly.

    Notice: During removal of the transfer case/output shaft, do not use excessive force or damage to the bushings may occur.

  11. Remove the transfer case assembly (908) from the transmission case (3).

  12. Object Number: 630829  Size: SH
  13. Remove the transfer case lower brace bolts (903).
  14. Remove the transfer case lower brace (906).

  15. Object Number: 630813  Size: SH
  16. Remove the case extension seal (8) from the transfer case (908).

  17. Object Number: 630815  Size: SH
  18. Position the transaxle so that the case side cover is facing down.
  19. Remove the oil dam (901) from the transaxle.

  20. Object Number: 750020  Size: SH
  21. Install the transfer case assembly onto the J 44755 . Position the carrier onto the post of the fixture.
  22. 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.

  23. Install the retaining bolts.
  24. Tighten
    Tighten the retaining bolts to 50 N·m (37 lb ft).


    Object Number: 750028  Size: SH
  25. Attach the J 6125-1B to J 44467 . Install the J 44467 into the snap ring groove on the output shaft (510). Tighten J 44467 securely to the output shaft.
  26. Remove the output shaft with the slide hammer impact.

  27. Object Number: 630819  Size: SH
  28. Remove the final drive sun gear (697).

  29. Object Number: 630820  Size: SH
  30. Remove the selective washer (902).

  31. Object Number: 630822  Size: SH
  32. Remove the parking gear (696) and the parking gear thrust bearing (695).

  33. Object Number: 630823  Size: SH
  34. Remove the final drive sun gear shaft (689).