GM Service Manual Online
For 1990-2009 cars only

Clutch Concentric Actuator Cylinder Replacement D16 and D20 Manual Transaxle

Removal Procedure


    Object Number: 1290070  Size: SH
  1. Remove the transaxle from the vehicle. Refer to Transmission Replacement for the D16 transaxle or Transmission Replacement for the D20 transaxle.
  2. Remove the concentric actuator cylinder retaining bolts.
  3. Disconnect the concentric actuator cylinder pipe from the concentric actuator cylinder.

  4. Object Number: 1290071  Size: SH

    Important: When removing the bushing, do not remove it with excessive force.

  5. Remove the bushing from the concentric actuator cylinder pipe in the transaxle housing.
  6. Remove the concentric actuator cylinder pipe.

  7. Object Number: 1290073  Size: SH

    Important: For removal or installation, do not separate the oil seal fixing spring from the back side of the concentric actuator cylinder.

  8. Remove the O-ring and the concentric actuator cylinder.

Installation Procedure


    Object Number: 1290074  Size: SH
  1. Install the concentric actuator cylinder and the pipe.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. After installing the pipe screw provisionally, tighten the concentric actuator cylinder retaining bolts.
  4. Tighten
    Tighten the concentric actuator cylinder retaining bolts to 7 N·m (62 lb in).

  5. Tighten the pipe screw.
  6. Tighten
    Tighten the pipe screw to 15 N·m (11 lb ft).


    Object Number: 1290076  Size: SH
  7. Install the bushing onto the transaxle housing.
  8. Connect the pipe with bushing.
  9. Install the transaxle into the vehicle. Refer to Transmission Replacement for the D16 transaxle or Transmission Replacement for the D20 transaxle.

Clutch Concentric Actuator Cylinder Replacement D33 Manual Transaxle

Removal Procedure


    Object Number: 1858652  Size: SH
  1. Remove the transaxle from the vehicle. Refer to Transmission Replacement .
  2. Remove the concentric slave cylinder retaining bolts.
  3. Disconnect the concentric slave cylinder pipe from the concentric slave cylinder.

  4. Object Number: 1773720  Size: SH

    Important: When removing the bushing, Make sure not to remove it with excessive force.

  5. Remove the bushing from the concentric slave cylinder pipe in the transaxle housing.
  6. Remove the concentric slave cylinder pipe.

  7. Object Number: 1773721  Size: SH
  8. Remove the O-ring and the concentric slave cylinder.

Installation Procedure


    Object Number: 1773721  Size: SH
  1. Install the O-ring and concentric slave cylinder.
  2. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1773722  Size: SH
  3. After installing the pipe screw provisionally, tighten the concentric slave cylinder retaining bolts.
  4. Tighten
    Tighten the concentric slave cylinder retaining bolts to 8-12 N·m (71-106 lb in).

  5. Tighten the pipe screw.
  6. Tighten
    Tighten the pipe screw to 16 N·m (12 lb ft).


    Object Number: 1773723  Size: SH
  7. Install the bushing onto the transaxle housing.
  8. Connect the pipe with bushing.
  9. Install the transaxle into the vehicle. Refer to Transmission Replacement .