GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Monte Carlo 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T60-E 🢒 Reverse Servo Replacement

Removal Procedure
  1. Remove the throttle body air inlet duct. Refer to Engine Controls.

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

    4. Object Number: 10489 Size: SH
  4. Pull the O-ring seal (41) out through the slot in the case.
  5. Use side cutting pliers in order to cut the servo cover O-ring seal (41).
  6. 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).

    7. Object Number: 10491 Size: SH
  7. Remove the reverse servo cover (40).
  8. Remove the servo assembly (42-48).
  9. Remove the servo spring (49).

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
  2. Install the servo spring (49).
  3. Install the servo assembly (42-48).
  4. Install the reverse servo cover (40) with new O-ring seal (41).
  5. Install the snap ring (39).
  6. Install the throttle body air inlet duct. Refer to Engine Controls.