Rear Clutch

DISASSEMBLY
1. Remove clutch pack select fit snap ring.

Fig. 167:

2. Remove reaction plate and remove clutch plates and discs (Fig. 167).
3. Remove pressure plate, wave spring, spacer ring and piston spring from clutch retainer.
4. Remove clutch piston from piston retainer with a twisting motion.
5. Remove input shaft thrust washer, if washer remained in piston retainer hub during removal.
6. Remove seals from clutch piston. Discard seals after removal.
If the input shaft must be replaced, first remove the retaining ring that secures the shaft in the piston retainer hub. Then press the old shaft out of the retainer with a shop press using suitable press tools to press on the shaft and to support the retainer hub as close to the shaft as possible.

ASSEMBLY
1. Lubricate the splines of the new shaft with petroleum jelly or MOPAR ATF+4, type 9602. Then align the shaft in the piston retainer and carefully press it into place using suitable press tools to press the shaft and to support the retainer hub as close to the shaft as possible. Do not allow the shaft to become cocked during installation. The retainer can be cracked if misalignment occurs.
2. Install the shaft retaining ring after pressing the shaft into place. Be sure the ring is fully seated before proceeding with clutch assembly.
3. Invert the input shaft in the press and using the same tools as in removal, press on shaft enough to seat the snap-ring into the retainer.
4. Soak clutch discs in transmission fluid before assembly.
5. Install new seals on clutch piston. Lubricate piston seals with MOPAR Door Ease, or Ru-Glyde to ease installation. Be sure seal lips face input shaft.
6. Install clutch piston in retainer. Use twisting motion to seat piston in bottom of retainer. A thin strip of plastic (about 0.020 inch thick), can be used to guide seals into place if necessary.

CAUTION: Never push the clutch piston straight in. This will fold the seals over causing leakage and clutch slip. In addition, never use any type of metal tool to help ease the piston seals into place. Metal tools will cut, shave, or score the seals.

7. Assemble piston retainer and clutch retainer.
8. Support clutch retainer with wood blocks, or insert input shaft through pre-drilled hole in workbench. Clutch pack components are easier to install if retainers are properly supported.
9. Install piston spring in clutch retainer. Concave side of spring faces upward and away from clutch piston.
10. Install spacer ring on top of piston spring.
11. Install wave spring on top of spacer ring. Then seat wave spring in retainer groove. If wave spring will not seat properly, spacer ring has probably shifted over and into wave spring groove in retainer. Use small screwdriver to realign spacer ring if necessary.
12. Install inner pressure plate in clutch retainer.
13. Install first clutch disc followed by steel plate until all discs and plates are installed. 4 clutch discs and steel plates are required (Fig. 167).
14. Install reaction plate on top of last clutch disc.
15. Install selective snap ring to secure clutch pack in retainer.

Fig. 168:

16. Install new seal rings on input shaft if necessary (Fig. 168). Be very sure ring ends are all securely hooked together before proceeding.

Fig. 169:

17. Check clutch pack clearance with feeler gauge (Fig. 169). Clearance should be 0.63 to 1.14 mm (0.025 to 0.045 inch).
18. If clutch pack clearance is incorrect, clutch pack snap ring may have to be replaced.
19. Install thrust washer on piston retainer hub. Use petroleum jelly to hold thrust washer in place.