7D-2
1968
PONTIAC
SERVICE
MANUAL
NUT
Fig.
7D-1
Pontiac
Shift
Controls
3.
Insert
screwdriver in slot in fitting and pry
fitting, gear and shaft from housing.
4. Pry
O-ring
from groove in fitting and
discard.
5.
Check
gear, shaft and fitting for wear and re-
place,
if necessary.
NOTE:
Check for correct usage by referring to
speedometer
drive and driven gear usage chart
in
Section 0.
SPEEDOMETER
DRIVEN
GEAR-INSTALL
1.
Install
new
O-ring
in groove and insert shaft.
2.
Hold the assembly so slot in fitting is toward
boss on housing and install in housing.
3.
Push fitting into housing until retainer can be
inserted
into slot.
4.
Install
retainer bolt and lockwasher and tighten
to 4 lb. ft. torque.
5. Connect speedometer cable to speedometer
driven
gear and sleeve assembly.
TRANSMISSION
EXTENSION
OIL
SEAL-
REMOVE
AND
INSTALL
To
inspect or replace the
rear
extension oil seal,
it
is necessary to remove the propeller shaft assem-
bly
from the vehicle.
1. Remove U-bolt nuts, lock plates (or lock-
washers)
and U-bolts from
rear
axle drive pinion
flange.
NOTE:
If tie wire has been
removed,
use rubber
band to hold bearings onto journals to prevent loss
of
needle bearings when rear joint is disconnected.
2.
Slide propeller shaft assembly
rearward
to dis-
engage
yoke from splines on transmission mainshaft.
3.
Use punch or other suitable tool and loosen oil
seal
from extension, remove and
discard
(Fig. 7D-4).
4.
Wash
counterbore with cleaning solvent and in-
spect for damage.
5. Inspect propeller shaft yoke for
nicks,
burrs
or
scratches which would cut new seal or cause
seal
to leak or damage bushing.
6.
Coat
new seal with sealing compound and press
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