4L60-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 exhaust pipe assembly.
3. Remove the heat shield.





4. Install the J29714-A.
5. Tighten the bolt in order to compress the servo cover.





6. Remove the servo cover retaining ring.
7. Remove the J 29714-A.





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

Installation Procedure





1. Install new seals on the servo pistons and the servo cover.
2. Install the 2-4 servo assembly into the transmission.
3. Install the J29714-A.





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

Notice: Refer to Fastener Notice in Service Precautions.

7. Install the oil pan bolt.
^ Tighten the oil pan bolt to 11 Nm (97 inch lbs.).





8. Install the heat shield.
9. Install the two bolts securing the transmission heat shield to the transmission.
^ Tighten the bolts to 17 Nm (13 ft. lbs.).
10. Install the exhaust pipe assembly.
11. Lower the vehicle.
12. Fill the transmission to the proper level with DEXRON III transmission fluid. Refer to Transmission Fluid Checking Procedure.