Reverse Shifter Shaft And Seal; Extension Case Bushing And Oil Seal; Clutch Keys And Springs - Pontiac Grand Prix Service Manual

7D-10
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PONTIAC SERVICE MANUAL
19. Remove mainshaft rear snap ring. Support second
speed gear and press on rear of mainshaft to remove
rear bearings, first speed gear and sleeve, first speed
synchronizing ring, 1-2 synchronizer clutch assembly,
second speed synchronizing ring and second speed
gear from the mainshaft (Fig. 7D-16).
REVERSE SHIFTER SHAFT AND SEAL
REMOVE AND REPLACE
1. With case extension removed from transmission, the
reverse shifter shaft lock pin will already be removed
(see step 5 under TRANSMISSION - DISASSEM-
BLE).
2. Remove shift fork.
3. Carefully drive the shifter shaft into case extension,
allowing ball detent to drop into case. Remove shaft,
ball detent spring and ball detent.
4. Place ball detent spring into detent spring hole and,
from inside of extension. install shifter shaft fully into
its opening until the detent plate is butted against
inside of extension housing.
5. Place detent ball on spring and, holding ball down
with a suitable tool, push shifter shaft into place and
turn until ball drops into place in detent on the shaft
detent plate (Fig. 7D- 17).
6. Install shift fork.
NOTE: Do not drive the shifter shaft lock pin into place
until the extension has been installed on the transmission
case.
EXTENSION CASE BUSHING AND OIL SEAL
REMOVE AND REPLACE
1. Remove oil seal with punch or other suitable tool
and discard seal (Fig. 7D-4).
2. Using Tool J 6399, drive bushing forward into case
extension (Fig. 7D-18).
3. Drive new bushing in from rear of case extension
with same tool (J 6399), until end of bushing is slightly
below counterbore for oil seal.
4. Coat I.D. of bushing with transmission oil, new seal
with sealing compound and start straight into bore of
case extension. Using Installer J 5154-A, tap seal into
extension case (Fig. 7D-5).
CA UTION: Do not excessively force the seal against the
seat in the extension.
CLUTCH KEYS AND SPRINGS
REMOVE AND REPLACE
NOTE: The clutch hubs and sliding sleeves ,are a
selected assembly and should be kept togtther a s
originally assembled but the three keys and two springs
may be replaced if worn or broken.
1. Push the hub from the sliding sleeve. The keys will
fall free and the springs may be easily removed.
2. Place the two springs in position (one on each side
of the hub), so a tanged end of each spring falls into
the same keyway in the hub. Place the keys in position
and, holding them in place, slide the hub into the
sleeve.
Fig. 70-19 Installing First Speed Synchronizing Ring
Fig. 70-20 Installing Rear Bearing