Toyota 4-Runner 1985 Repair Manual page 450

AT-48
AUTOMATIC TRANSMISSION - Component Groups (Front Clutch)
2. USE EXTENSION HOUSING AS WORK STAND
3. REMOVE SNAP RING FROM FRONT CLUTCH DRUM
4. REMOVE FRONT AND REAR CLUTCH HUB
Lift out the two clutch hubs together.
5. REMOVE THRUST BEARING AND RACES
Note the position of the races.
6. REMOVE DISC
7. REMOVE THINNER SNAP RING
8. REMOVE REMAINING CLUTCH PLATES AND DISCS
9. COMPRESS PISTON RETURN SPRINGS AND REMOVE
SNAP RING
Place SST on the spring retainer and compress the springs
with a shop press.
Using a screwdriver, remove the snap ring.
SST 09350-20013
10. REMOVE SPRING RETAINER AND EIGHTEEN SPRINGS
11. ASSEMBLE FRONT CLUTCH ON OVERDRIVE CASE AND
BLOW PISTON
(a) Slide the front clutch onto the overdrive case.
(b) Apply compressed air to the overdrive case to remove
the piston. (If piston does not come out completely,
use pliers to remove it.)
(c) Remove the front clutch from the overdrive case.
12. REMOVE O-RINGS FROM PISTON