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7A4-62
1977 PONTIAC SERVICE MANUAL
DRIVE GEAR
FLANGED
(METAL)
1.0. FLANGE
0 . 0 . FLANGE
-
.
--
-
-
\
FRONT INTERNAL
I
I
I
\
OR METAL)
ASSEMBLY
t
SUN 'GEAR
I.D.
FLANGE
SHAFT
RACE
2709
Fig. 7A4-138 Rear
Unit
-
Exploded View
21. Install output shaft-to-case thrust washer (metal)
tabs in pockets and retain with petrolatum (Fig. 7A4-150).
CAUTION: This must be a metal washer.
ASSEMBLY
OF UNITS INTO
TRANSMISSION CASE
NOTE:
The first 3 steps can be omitted if the parts
involved were not removed on disassembly.
1. Install parking pawl, tooth toward inside of case, and
parking pawl shaft (Fig. 7A4- 15 1).
2. Install parking pawl shaft retaining spring (Fig. 7A4-
152).
3. Install new cup plug, using a 3/8" dia. rod, and drive
into transmission case until parking pawl shaft bottoms on
case rib (Fig. 7A4-153).
4. Install parking pawl return spring, square end hooked
on pawl and other end on case (Fig. 7A4-154).
5. Install parking brake bracket guides over parking
pawl, using two attaching bolts. Torque to 18 lb. ft.
6. Install rear band so that two lugs index with two
anchor pins. Check to make sure band is seated on lugs (Fig.
7A4- 155).
7. Install the support-to-case spacer against the shoulder
at the bottom of case splines, with the ring gap adjacent to
the band anchor pin (Fig. 7A4-156).
CAUTION: Do not confuse this spacer (040"
thick and both sides flat) with either the center
support-to-case snap ring (one side is beveled) or
the intermediate clutch backing plate-to-case snap
ring (093" thick and both sides flat).
8. Install proper rear selective washer (proper washer
determined by previous end play check) into slots provided
inside rear of transmission case.
NOTE:
Dip washer in transmission oil before
installation.
9. Install complete gear unit assembly into case, using
Holding Tool J 21795 (Fig. 7A4-157) and making certain
center support bolt hole is properly aligned with hole in case.
10. Install center support-to-case retaining snap ring,
with its bevel side up and locating gap adjacent to band
anchor pin. Make certain ring is properly seated in case (Fig.
7A4- 158).
IMPORTANT: When properly installed, flat side of
ring is against the center support.
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