Pontiac FIREBIRD 1972 Service Manual page 1078

76-40 1972 PONTIAC SERVICE MANUAL
CONVERTER AND MODULATOR
REMOVE
1. With transmission in portable jack, remove Con-
verter Holding Clamp
J 21366 (if installed) and
remove converter assembly by pulling straight out.
2. Install Holding Fixture J 8763-01 and Adaptor J
8763-19 onto transmission and place transmission
into Holding Tool Base
J 3289-14 on bench. Position
transmission vertically, with extension housing down
and a drain pan on floor beneath transmission.
NOTE: Before instalfing Holding Fixture J
8763-01 onto transmission, it must be modified
so that the intermediate accumulator will clear
the fixture.
3. Remove vacuum modulator attaching screw and re-
tainer clip, modulator, O-ring seal and modulator
valve from case (Fig. 76-44). Discard O-ring seal.
EXTENSION HOUSING, SPE'EDO DRIVE
GEAR AND GOVERNOR
REMOVE
1. Remove. bolt, retainer and speedometer driven gear-
speed control switch from side of extension housing.
2. Remove four (4) extension housing-to-case attaching
bolts, extension housing and its square cut oil seal
from case or housing (Fig. 76-45).
3. If necessary to replace, pry lip oil seal from extension
- -
-
housing, using ascrewdriver (Fig. 76-46).
EXTENSION
HOUSING-
TO-CASE
OIL SEAL
Fig. 7G-46 Removing Lip Oil Seal
4. Depress speedometer drive gear retaining clip and
slide speedometer drive gear off output shaft (Fig.
76-47).
5. Remove governor cover retaining clip, if present,
with a screwdriver.
6. Pry governor cover and O-ring seal from case and
withdraw governor assembly. Discard O-ring seal
(Fig. 76-48).
CAUTION: Use extreme care so as not to dam-
age cover. I f cover is damaged, it must be re-
placed.
Fig. 7G-45 Removing Extension Housing Oil Seal Fig. 7 6 - 4 7 Speedometer Drive Gear