7D-10
1968
PONTIAC
SERVICE
MANUAL
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.
7C-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.
NOTE:
The
clutch
hubs and
sliding
sleeves are a
selected
assembly and
should
be kept together as
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.
TRANSMISSION
EXTENSION
CASE
BUSHING
AND
OIL
SEAL-REMOVE
AND
INSTALL
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).
4.
Fig.
7D-18
Removing
or
Installing
Extension
Case
Bushing
3.
Drive
new bushing in from
rear
of case ex-
tension 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).
CAUTION:
Do not excessively
force
the
seal
against
the seat in the extension.
CLEANING
AND INSPECTION
TRANSMISSION
CASE
Wash
the transmission case inside and out with a
cleaning solvent and inspect for
cracks.
Inspect the
front
face which fits against clutch housing for
burrs.
If
any are present, dress them off with a fine cut
mill
file.
FRONT
AND
REAR
BEARINGS
1.
Wash
the front and
rear
bearings thoroughly in
a
cleaning solvent.
2.
Blow out bearings with compressed air.
CA
UTION:
Do not allow the bearings to
spin;
turn
them slowly by hand. Spinning bearings
will
dam-
age
the
race
and
balls.
3.
Make sure the bearings are clean, then
lubri-
cate them with light engine oil and check them for
roughness. Roughness may be determined by slowly
turning
the outer race by hand.
BEARING
ROLLERS
AND
SPACERS
All
main drive gear and countergear bearing
rollers
should be inspected closely and replaced if
they show wear. Inspect countershaft at the same
time and replace if necessary. Replace all worn
spacers.
GEARS
AND
BUSHING
Inspect
all gears and first speed gear bushing and,
if
necessary, replace all that are worn or damaged.
REVERSE
IDLER
CLUTCH
KEYS
AND
SPRING-REMOVE
AND
INSTALL
1. The bushings used in the idler gear are pressed
into the gear, then peened into
holes
in the bores
and
are bored in place.
This
insures the positive
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