GM Service Manual Online
For 1990-2009 cars only

Tools Required

SA9110T Weight Set


    Object Number: 864166  Size: SH
  1. Place both weights on the clutch backing plate using weight set SA9111T-1 and SA9111T-2.
  2. Install the air check fixture to the clutch housing.
  3. Position the dial indicator with the tip resting on the weight.
  4. Apply regulated air pressure to the clutch piston and release.
  5. Regulated Pressure

        • 1st Clutch 415 kPa (60 psi)
        • 2nd, 3rd, 4th clutch 550 kPa (111 psi)
  6. Zero dial indicator. Apply air pressure and measure the piston travel. If end play is not in spec, release pressure, change the snap ring and recheck the measurement.
  7. End Play

        • 1st clutch 0.960-1.410 mm (0.038-0.055 in)
        • 2nd clutch 1.520-2.190 mm (0.060-0.086 in)
        • 3rd clutch 1.170-1.560 mm (0.046-0.061 in)
        • 4th clutch 0.910-1.180 mm (0.36-0.46 in)

    Object Number: 864737  Size: SH
  8. If 1st clutch housing is being replaced it will be necessary to install a new bearing and race. Press on the new race with the thick end up until flush.
  9. Important: Chamfer-side goes toward housing and flat-side goes toward bearing.

  10. First clutch only: Install the 1st gear thrust washer.
  11. Make sure tabs on the washer line up with slots on the hub.

  12. Install the thrust bearing with the roller toward the thrust washer.
  13. Install the 1st clutch needle bearing.