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MANUAL TRANSMISSIONS
78-23
C A M D E T E N T PIN
t
CASE COVER
SEALS
- 0
SHlFTER S H A F T S
, S H I F T
F O R K S
8. Connect control rods to shifter levers and to shifter
shafts.
9 Refill transmission to proper level, check transmission
operation and adjust linkage as required.
SPEEDOMETER DRIVEN GEAR
-
R & R
1. Raise vehicle on hoist.
2. Disconnect speedometer cable, remove lock plate-to-
extension bolt and lock washer and remove lock plate.
3. Insert screwdriver on lock plate slot in fitting and pry
fitting, gear and shaft from rear extension. Pry "0" ring seal
from groove in fitting.
4. Inspect parts and replace as necessary.
5. Install new "0" ring seal in groove in fitting. Coat
"0" ring and driven gear shaft with transmission lubricant
and insert shaft into fitting.
6. Hold assembly so that slot in fitting is toward lock
plate boss on rear extension and install assembly into
extension. Push fitting into extension until lock plate can be
inserted in groove and attached to extension.
7. Lower and remove vehicle from hoist.
Fig. 7B-19 Transmission Case Cover
-
Exploded View
LT. DUTY
REAR EXTENSION OIL SEAL
-
R & R
Before raising vehicle, disconnect battery and release
parking brake.
1. Raise vehicle on hoist and remove propeller shaft as
outlined in Section 4A.
2. Pry out oil seal with screwdriver.
3. Wash counterbore and inspect for damage.
4. Coat new seal with sealing compound and press seal
carefully into place in rear extension, using Installer J 5154
or J 21426.
5. Reinstall propeller shaft and lower vehicle from hoist.
REAR EXTENSION BUSHING
-
R & R
Refer to procedure under 3-SPEED LT. DUTY
MUNCIE TRANSMISSION.
MUNCIE TRANSMISSION
CASE COVER
-
R & R
Before raising vehicle on hoist, disconnect battery and
release parking brake.
1. Raise vehicle on hoist and disconnect control rods
from shifter levers. Disconnect back-up lamp at cover.
2. Shift transmission into neutral and remove bolts and
case cover from transmission case, allowing transmission
fluid to drain.
3. Remove outer shifter levers and both shift forks from
shifter shaft assemblies. Remove all three (3) shifter shaft
assemblies from case cover. Remove reverse shifter shaft
detent ball and spring (Fig. 7B-20).
NOTE: The 3rd-4th shifter shaft lip seal in the case
cover and "0" ring seal on 1st-2nd shifter shaft may now
be replaced if required because of damage.
4. Remove detent cam spring and pivot retainer "C"
ring. Mark to identify for reassembly, then remove both
detent cams.
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