Toyota 4-Runner 1985 Repair Manual page 497

AUTOMATIC TRANSMISSION -
Assembly of Transmission
AT-95
6. INSTALL REACTION PLATE
Position the notched tooth of the reaction plate toward the
valve body side of the case. Push it into place.
NOTE: The reaction plate is correctly installed if the snap
ring groove is fully visible.
7 . INSTALL SNAP RING
Use a large screwdriver to compress the snap ring. Push
it into place by hand. Work around the case. Visually check
to make sure that the ring is fully seated. Make sure that
the ends of the snap ring are between the lugs.
8. PUSH CENTER SUPPORT ASSEMBLY INTO CASE
Align the oil hole and bolt hole of the center support with
those of the body side and insert the center support.
9. INSTALL TWO CENTER SUPPORT BOLTS WITH WAVE
WASHERS
Align the center support with holes in the case and install
the two bolts finger tight.
10. INSTALL REAR CLUTCH IN CASE
Rotate the clutch to mesh the hub with the center support.
11. CHECK FOR CORRECT INSTALLATION OF REAR CLUTCH
If the rear clutch is fully meshed with the center support,
the splined center of the clutch will be flush with the end
of the sun gear shaft.