4L60-E

2-4 Servo

Tools Required
^ J29714-A Servo Cover Depressor

Removal Procedure
1. Raise the vehicle. Refer to Vehicle Lifting.
2. Remove the oil pan bolt below and to the left of the 2 - servo cover.





3. Install the J29714-A to the oil pan rail.
4. Tighten the bolt on the J29714-A in order to compress the servo cover.
5. Remove the servo cover retaining ring.





6. Loosen the bolt on the J29714-A to release tension on the servo cover.





7. 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.





8. Remove the 2-4 servo assembly from the transmission.
9. 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 J29714-A.





6. Tighten the bolt on the J29714-A in order to compress the servo cover.
7. Install the servo cover retaining ring.
8. Remove the J29714-A from the oil pan flange.

Notice: Refer to Fastener Notice in Service Precautions.

9. Install the oil pan bolt.
Tighten the oil pan bolt to 11 Nm (97 inch lbs.).
10. Lower the vehicle.
11. Fill the transmission to the proper level with approved fluid.