Toyota 4-Runner 1985 Repair Manual page 458

AT-56
AUTOMATIC TRANSMISSION -
Component Groups (Center Support Assembly)
13. REMOVE NO.2 BRAKE PISTON
Blow compressed air through the center support oil hr''''
to remove the No.2 brake piston.
If the piston does not pop out, lift if out with needle-nose
pliers.
14. REMOVE NO.2 BRAKE PISTON O-RINGS
15. REMOVE THREE OIL SEAL RINGS FROM CENTER
SUPPORT
16. REMOVE ONE-WAY CLUTCH ASSEMBLY AND OIL SEAL
RINGS FROM SUN GEAR
INSPECTION OF CENTER SUPPORT ASSEMBLY
1. CHECK OPERATION OF ONE-WAY CLUTCH
Hold the No.2 brake hub and turn the sun gear. The sun
gear should turn freely counterclockwise and should lock
clockwise.
If the one-way clutch does not work properly, replace it.
2. IF NECESSARY, REPLACE ONE-WAY CLUTCH
(a) Bend several tabs back with a tapered punch.
(b) Pry off the retainer with a screwdriver. Leave the other
retainer on the hub.
(c) Remove the one-way clutch.