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78-46
1977 PONTIAC SERVICE MANUAL
Fig.
7B-70
Removing Plug, Poppet Spring and Plunger
Fig.
78-72
Removing Shifter Head Roll Pin
Fig.
78-7
1 Removing Selector Lever Pivot
5. Slide transmission case forward and remove needle
thrust bearing and race from input shaft or case.
NOTE: Some models may also contain a lipped thrust
washer.
6. Remove extension housing by sliding it rearward. The
shifter head, shift rail and selector lever are not fastened to
housing and should not be permitted to drop out. Remove
from extension housing.
The selector lever may be removed from shift rail by
removing retaining clip and pin.
NOTE: The needle rollers are not always retained in
needle case. Catch loose needles if they fall out during
disassembly so they can be replaced in mating race
during assembly.
7. Remove rail selector pin and remove rail selector (Fig.
7B-73).
8. Remove snap ring behind speedometer gear, then
remove gear and ball from output shaft.
Fig.
78-73
Removing Pin and Rail Selector
9. Remove snap ring, thrust washer, first speed gear and
blocker ring from output shaft (Fig. 7B-75).
NOTE: All snap rings are not the same. Be sure the
correct snap ring is installed into the correct groove
when reassembling (see Fig. 7B-74).
10. Remove snap ring from behind synchronizer hub
(Fig. 7B-76).
11. Turn shift rail to position interlock pawl to the
inboard position to permit removal of first and reverse shift
link.
12. Slide first and reverse synchronizer, shift fork, shift
link and shift rail rearward from transmission (Fig. 7B-77).
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