Pontiac FIREBIRD 1972 Service Manual page 1028

TWO SPEED AUTOMP
Fig. 7F-68 Compressing Piston Return Springs
This machined face must be protected whe-
never it must be brought to bear on a press or
tool of any sort.
IC (M-35) TRANSMISSION 7F-4 1
Remove clutch flange snap ring from clutch drum.'
Remove low sun gear and clutch flange assembly and
clutch hub rear thrust washer from clutch drum.
Lift out clutch hub, clutch pack and clutch hub front
thrust washer.
Using Spring Compressor J 23327
-
1 and -2, Adapter
Ring J 23466 and Pilot J 9542-4, compress piston
return springs and retainer to remove the retainer
snap ring (Fig. 7F-68).
CAUTION: When using compressor tools, be
careful not to mark or score front machined
face of clutch drum.
Carefully release pressure, remove tools, retainer
snap ring, spring retainer and twenty-four (24) piston
return springs.
,
Remove clutch piston with a twisting motion from
drum and separate inner seal from clutch drum and
outer seal from piston. Discard seals.
INSPECT
1. Wash all parts in cleaning solvent and air dry. DO
NOT USE RAGS TO DRY PARTS.
2. Check bushing in clutch drum for scoring or exces-
sive wear. If replacement is necessary, proceed as
follows:
Fig. 7F-69 Removing Clutch Drum Bushing
a. Remove old bushing, using Drive Handle J 8092
with Bushing Tool J 21424-5 (Fig. 7F-69). Avoid
damaging bushing bore at machined front face of
clutch drum.
b. Using same tools, install new bushing into face
side of drum (Fig. 7F-70). Press bushing in only
until Bushing Tool J 21424-5 touches front face
of drum.
3. Check steel ball in clutch drum. Ball acts as a relief
valve. Be sure that it is free to move and that orifice
in front face of drum is open. If ball is loose enough
to come out, or not loose enough to rattle, replace
clutch drum. Do not attempt replacement or restak- - .
ine of ball.
Fig. 7F-70 Installing Clutch Drum Bushing