Forward Clutch Assembly
DISASSEMBLY
1. Remove the No. 9A forward clutch thrust beating.
2. Remove the No. 8B forward clutch needle bearing assembly.
3. Remove the 2 interlocking cast iron forward clutch cylinder seals.
4. Remove the selective forward clutch pressure plate retaining ring.
5. Remove the (A) top forward clutch pressure plate, the (B) clutch pack (3- or 4- plate, depending on vehicle application), the (C) forward clutch pressure spring and the (D) bottom forward clutch pressure plate.
NOTE: Tag the parts for identification during installation.
6. Remove the forward clutch piston return spring retaining ring.
7. Remove the forward clutch piston return spring.
8. Remove the forward clutch piston apply ring.
9. Using compressed air, remove the forward clutch piston.
10. Remove the outer forward clutch piston seal.
11. Using the O-Ring Tool, remove the forward clutch piston inner seal.
ASSEMBLY
NOTE: Soak the clutch plates for 15 minutes in clean MERCON(R) V Automatic Transmission Fluid XT-5-QM or equivalent.
1. Install the forward clutch piston inner seal.
2. Inspect the forward clutch piston check ball.
- Check for freedom of movement and proper seating.
- Clean with a suitable solvent, if necessary.
- Replace the forward clutch piston assembly, if necessary.
3. Install the forward clutch piston outer seal.
NOTE: Make sure the seal lip is facing upward.
4. Install the (A) forward clutch piston with the (B) Lip Seal Protector.
5. Install the (A) steel forward clutch piston apply ring into the (B) forward clutch piston groove.
6. Install the forward clutch piston return spring, with the (A) spring fingers against the (B) forward clutch piston apply ring. Make sure the (C) notch is positioned so that both ends of the (D) forward clutch piston apply ring are visible.
CAUTION: To ensure durability, the notch between the spring fingers must be positioned so that both ends of the forward clutch piston apply ring are visible.
7. Install the forward clutch piston return spring retaining ring. Make sure it is properly seated in the groove.
8. Install the (A) bottom forward clutch pressure plate with beveled face downward, the (B) forward clutch pressure spring, the (C) clutch pack (number of plates are model-dependent), and the (D) top forward clutch pressure plate.
9. Install the selective forward clutch pressure plate retaining ring.
10. Using a feeler gauge, check the stack-up clearance in three places, 120 degrees apart.
- If the clearance is not to specification, install the correct selective forward clutch pressure plate retaining ring and recheck the clearance.
11. Install the No. 8B forward clutch needle bearing.
NOTE:
- Lightly lubricate the needle bearing with petroleum jelly to hold it in place during assembly.
- The bearing large inner diameter radius must face inward.
12. Install the two new cast iron forward clutch cylinder seals in the grooves.
NOTE: Stagger the interlocking opening on the seals 180 degrees apart.
13. Install the No. 9A forward clutch thrust bearing.
NOTE:
- Lightly lubricate the thrust bearing with petroleum jelly to hold it in place during assembly.
- The black side of the bearing must face upward.