Exploded View Of Mainshaft; Removing Reverse Synchronizer Hub And Sliding Gear - Pontiac Grand Prix Service Manual

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7A-10 1969
PONTIAC SERVICE MANUAL
BLOCKING BLOCKING SNAP SPEEDOMETER
REAR DRIVE GEAR
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REVERSE GEAR
A N D SLEEVE
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SNAP RINGS
SYNCHRONIZER
Fig. 7A-15 Exploded
16. Slide the second gear with blocking ring and the
second and third gear synchronizer onto the main
shaft. The tapered machined surface of the second
gear must be toward the front of the shaft. Make sure
the notches in the blocking ring engage the synchro-
nizer inserts. Secure the synchronizer with a snap ring.
ASSEMBLE
1. Install reverse idler gear, with a thrust washer
on each end in case. Make sure that roll pin (Fig.
7A-20) is seated in slot in back face of case.
2. Assemble the countergear, countershaft align-
ment tool, bearings, thrust washers and place in
bottom of case. The countergear will remain in
the bottom of the case until the main and input
shafts have been installed (Fig. 7A-21).
Fig. 7A-16 Removing Reverse Synchronizer Hub and
Sliding Gear
View of Mainshaft
3. Coat the b6re of the input shaft and gear (Fig.
'
7A-22) with a thin film of grease and install the
15 bearings in the bore.
NOTE: A
thick film of grease will plug the
lubricant holes and prevent lubrication of the
bearings.
4
4. Install the input shaft and bearing through the
top of the case into the bore in the front of the
case. Install the large snap ring on the bearing
and slide input shaft fully forward.
5. Position the mainshaft assembly in the case.
6. Install the second and third speed shift fork on
the second and third speed synchronizer.
7. Place a detent plug spring and detent plug in
the case.
NOTE: Detent plug and spring installation can be
facilitated by the use of Tool J 22239 or a similar
tool fabricated Jrom 1/2" round bar stock (Fig.
7A -23).
8. Place second and third speed synchronizer in second
speed position (toward rear of case).
9. Align the shift fork and install second and third
speed shift rail.
NOTE: It will be necessaly to depress detent plug to
install the rail in the bore. Move the rail in until the
detent plug engages the forward notch.
10. Secure the second and third shift fork to the shift
rail with set screw.
1 1. Move the synchronizer to the neutral position.
12. Install the interlock plug in the case. If the second
and third speed shift rail is in the neutral position, the