GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 3289-20 Bench Mount Holding Fixture Base
    • J 36842 Transmission Holding Fixture

    Object Number: 38205  Size: SH
  1. Disconnect the battery negative cable assembly from the battery negative terminal. Refer to

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

    in General Information.
  2. Remove the control lever handle. Refer to Control Lever Handle Assembly (6-Speed) .
  3. Raise the vehicle. Refer to General Vehicle Lifting and Jacking in General Information.
  4. Support the vehicle with safety stands.

  5. Object Number: 33370  Size: SH
  6. Remove the transmission oil drain plug.
  7. Drain the oil from the transmission assembly.
  8. Support the rear axle assembly with a safety stand.
  9. Remove the propeller shaft assembly. Refer to Propeller Shaft Replacement in Propeller Shaft.
  10. Remove the rear axle torque arm. Refer to Rear Axle Torque Arm Replacement in Rear Suspension.
  11. Remove the catalytic converter hanger assembly. Refer to Converter Hanger Assembly in Engine Exhaust.

  12. Object Number: 33371  Size: SH
  13. Disconnect the following wire harness connectors:
  14. • The reverse lockout solenoid
    • The skip shift solenoid
    • The backup lamp switch
    • The vehicle speed sensor
  15. Remove the left-hand Instrument panel sound insulator assembly. Refer to Instrument Panel Insulator Replacement in Instrument Panel, Gauges, and Console.

  16. Object Number: 33372  Size: SH
  17. Disconnect the pin retainer from the clutch pushrod.
  18. Disconnect the clutch pushrod from the clutch pedal assembly pin.
  19. Notice: Disconnect the clutch master cylinder pushrod before removing the clutch actuator cylinder assembly. The actuator cylinder could be permanently damaged if the clutch pedal is depressed with the actuator disconnected.

    Important: Do not allow the clutch actuator cylinder to hang from the hydraulic line. Retain the actuator cylinder with mechanic's wire.


    Object Number: 33373  Size: SH
  20. Remove the following parts:
  21. 15.1. Two nuts
    15.2. The clutch actuator cylinder
    15.3. The actuator spacer

    Object Number: 33374  Size: SH
  22. Pull the clutch fork assembly down until it disengages from the release bearing.
  23. Support the engine with a safety stand.
  24. Support the transmission assembly with a safety stand.
  25. Remove the transmission support-mount assembly. Refer to Transmission Support and Mount Assembly .
  26. Notice: Disengage the clutch fork assembly from the release bearing assembly. This will prevent damage to the clutch system.


    Object Number: 33375  Size: SH
  27. Remove the transmission to flywheel housing bolts.
  28. Remove the transmission assembly from the vehicle
  29. Install the transmission J 39430 .
  30. Mount the transmission on a workbench using the J 3289-20 .