Overdrive Clutch Assembly

Overdrive Clutch Assembly

Special Tool(s):

Material:

Overdrive Clutch Assembly

Overdrive Clutch Assembly:

Disassembly
1. Remove the roller bearing.





2. Remove the overdrive clutch pack snap ring.





3. Remove the overdrive clutch pack.





4. If equipped, remove the overdrive clutch thrust washer.





5. Using the special tool and a press, remove the overdrive clutch balance piston retaining ring and spacer.





6. Remove the overdrive clutch balance piston.





7. Remove the overdrive clutch return spring.





8. Remove the overdrive clutch apply piston.





9. Remove and discard the outer O-ring seal on the overdrive clutch balance piston.





10. Remove and discard both the inner (one large and one small) O-ring seals on the overdrive clutch apply piston.





11. NOTE: The roller bearing may stick to the forward clutch assembly.

Remove and discard the 3 square cut seals and the roller bearing.





Assembly
1. Install a new outer O-ring seal on the overdrive clutch balance piston.





2. Install 2 new inner O-ring seals on the overdrive clutch apply piston.





3. Install the overdrive clutch apply piston into the drum with the O-ring seals and the 3 pads facing down toward the drum.





4. NOTE: The fingers on the return spring are facing down toward the piston.

Install the overdrive clutch return spring.





5. NOTE: The cone shape of the balance piston must face up when installed correctly.

Install the overdrive clutch balance piston.





6. Using the special tool, install the overdrive clutch balance piston retaining ring.





7. If removed, install the overdrive clutch thrust washer.





8. NOTE: Before assembly, soak the new clutch plates in clean automatic transmission fluid.

Install the new overdrive clutch plates, starting with the wave spring then a steel plate and alternating between friction and steel plates, and ending with the pressure plate on the top.
9. Install the overdrive clutch pack snap ring.





10. Install the overdrive clutch assembly into the special tool.





11. With the dial indicator set at zero, lift up on the steel pressure plate so it is against the select fit snap ring. Record this reading as reading A.
12. Rotate the overdrive clutch assembly 180 degrees from the opening of the snap ring, take a second reading and record this reading as reading B.





13. NOTE: If the final measurement is not within specification, install a new snap ring until the correct specification is achieved.

^ 5.4L engine - 0.50-0.90 mm (0.020-0.035 in).
If the free pack end clearance between the bottom of the snap ring and the top of the pressure plate is high, remeasure using a thicker select fit snap ring. If the free pack end clearance between the bottom of the snap ring and the top of the pressure plate is low, remeasure using a thinner select fit snap ring.
14. Install a new roller bearing.