Chevrolet 10 Series 1967, Service Manual

Page: 407 / 605

CLUTCHES AND TRANSMISSIONS 7-21
MAINTENANCE AND ADJUSTMENTS
TRANSMISSION GEARSHIFT LEVER
Removal
1. Slide the open side of Tool J-8109 over the lever,
engage the lugs of the tool in the open slot of the re­
tainer (fig. 2J), then press down on the tool and turn
it to the left to disengage the lugs on the retainer.
Fig .
2J -
Removing G earshift Lever
NOTE:
It may be necessary to remove one
handle from Tool J-8109 in order to clear sheet
metal on some models.
2. Lift the lever out of the cover.
Installation
1. Place the gearshift lever in position in transmission
cover.
2. Slide the open end of Tool J-8109 over the lever, en­
gage the lugs of the tool in the open slot of the re­
tainer, then press down on the tool and turn to the
right to engage the lugs on the retainer.
TRANSMISSION COVER
Removal
1. Remove accelerator pedal, floor mat and transmis­
sion cover from body floor on conventional models.
On Forward Control models, remove the front floor
pan.
2. Remove gearshift lever from transmission cover,
using Tool J-8109.
3. Remove capscrews attaching transmission cover to
transmission case and remove cover.
CAUTION: Place a piece of cardboard over
transmission cover opening, using two of the
cover attaching screws to hold it in place. This
will keep anything from falling into the trans­
mission case.
Disassembly
1. With a small punch drive out pins that retain shifter
yokes and reverse shifter head to shifter shafts.
NOTE: Pin holding reverse shifter head to
shifter shaft must be removed and shifter head
removed from cover before first and second
speed shifter yoke retainer pin can be removed.
2. Turn shifter shafts one-half turn to raise yoke detent
balls out of the notches in the shifter shafts and drive
shafts out of cover and shifter yokes. Shifter shafts
will push expansion plugs out ahead of them.
CAUTION:
Care should be exercised so that
yoke detent balls and springs which are located
in the cover are not lost as the shifter shafts
are removed.
3. Should it be necessary to remove the shifter inter­
lock assembly, cut the ends from the three shifter
interlock pins and drive pins out of cover to remove
assembly. If interlock plate is removed, new shifter
interlock pins must be used. Properly support pins
when re-riveting.
4. Should it be necessary to replace reverse shifter
compression pin or spring, the reverse shifter com­
pression pin spring expansion plug must be removed
from the cover. Extreme care must be used in re­
moving this expansion plug as it is under spring
tension.
5. In replacing reverse shifter compression pin or
spring, support cover in a vise and apply pressure to
hold expansion plug in place while staking in position
(fig. 3J).
Assembly
1. In reassembling the transmission cover, care must
be used in installing the shifter shafts. They should
be installed in the order shown in Figure 4J, namely;
reverse speed, low speed and high speed.
2. Place yoke detent ball springs and balls in position in
holes in cover.
3. Start shifter shafts into cover, depress yoke detent
balls with small punch and push shafts on over balls.
Hold shifter yokes and reverse shifter head in posi­
tion and push shafts on through yokes and reverse
shifter head, until retainer pin holes in yokes and
reverse shifter head align with holes in shafts. Then
install retainer pins.
4. Install shifter shaft hole expansion plugs and stake
them in place.
F ig . 3J - Staking Expansion Plug
CHEVROLET TRUCK SERVICE M ANUAL