GM Service Manual Online
For 1990-2009 cars

Removal Procedure


    Object Number: 262805  Size: SH
  1. Remove the throttle body air inlet duct. Refer to Air Cleaner Element Replacement in Engine Controls-3.4L.

  2. Object Number: 10488  Size: SH
  3. Depress the reverse servo cover (40).
  4. Remove the snap ring (39).

  5. Object Number: 10489  Size: SH
  6. Pull the O-ring seal (41) out through the slot in the case.
  7. Use side cutting pliers in order to cut the servo cover O-ring seal (41).
  8. Depress the reverse servo cover (40), grasp one end of the cut seal (41) and pull the seal (41) out of the servo cover (40).

  9. Object Number: 10491  Size: SH
  10. Remove the reverse servo cover (40).
  11. Remove the reverse servo assembly (42-48).
  12. Remove the reverse servo spring (49).
  13. For information on the disassembly and inspection of the reverse servo assembly (42-48), refer to the Transmission/Transaxle/Transfer Case Unit Repair Manual.

Installation Procedure

    Important: Follow this procedure exactly or the transaxle will have no reverse gear due to the servo pin missing the band.

  1. Jack up the driver side (channel plate side) of the car until it is higher than the differential side. This ensures that the reverse band is in the proper location and not cocked to the channel plate side of the case.

  2. Object Number: 10491  Size: SH
  3. Install the reverse servo spring (49).
  4. Install the reverse servo assembly (42-48).
  5. Install the reverse servo cover (40) with new O-ring seal (41).
  6. Install the snap ring (39).

  7. Object Number: 262805  Size: SH
  8. Install the throttle body air inlet duct. Refer to Air Cleaner Element Replacement in Engine Controls-3.4L.