4L60-E/4L65-E

2-4 Servo

^ Tools Required
- J 29714-A Servo Cover Depressor

Removal Procedure
1. Raise the vehicle. Refer to Vehicle Lifting.
2. Remove the 2 heat shield retaining bolts and the heat shield from the transmission.
3. Remove the oil pan bolt below and to the left of the 2-4 servo cover.





4. Install the J 29714-A to the oil pan rail.
5. Tighten the bolt on the J 29714-A in order to compress the servo cover.





6. Remove the servo cover retaining ring.
7. Loosen the bolt on the J 29714-A to release tension on the servo cover.





8. Remove the servo cover and O-ring seal. If the cover is hung up on the seal, use a pick (2) to pull and stretch the seal (1) out of the groove. Cut and remove the O-ring seal before removing the cover.





9. Remove the 2-4 servo assembly from the transmission.
10. Inspect the 4th apply piston, the 2-4 servo converter, 2nd apply piston, and the piston inner housing for the following defects:
^ Cracks
^ Scoring
^ Burrs and nicks

Installation Procedure
1. Install the new seals on the pistons and the servo cover.
2. Lubricate the seals with clean transmission fluid.





3. Install the 2-4 servo assembly into the 2-4 servo bore.
4. Install the servo cover and O-ring seal
5. Install the J 29714-A.





6. Tighten the bolt on the J 29714-A in order to compress the servo cover
7. Install the servo cover retaining ring.
8. Remove the J 29774-A from the oil pan flange.

Notice: Refer to Fastener Notice in Service Precautions.

9. Install the oil pan boll
^ Tighten the oil pan bolt to 11 Nm (97 inch lbs.).
10. Install the 2 heat shield retaining bolts and the heat shield from the transmission.
^ Tighten the bolts to 17 Nm (13 ft. lbs.).
11. Lower the vehicle.
12. Fill the transmission to the propel level with approved fluid.