4C-1
CONTENTS
OF
THIS
SECTION
SUBJECT
PAGE
Inspection . 4C-1
Minor
Services and Repairs
Alignment of Engine and Propeller Shaft. . 4C-1
Major
Repairs
Remove Propeller Shaft 4C-1
SUBJECT
PAGE
Disassemble Universal Joints 4C-1
Cleaning
and Inspection 4C-3
Assemble Universal Joints 4C-3
Install
Propeller Shaft 4C-4
Torque
Specifications 4C-4
INSPECTION
No periodic inspection of propeller shaft assembly
is required. Since propeller shaft assembly is a
balanced unit, it should be kept free of undercoating
and
other foreign material which could upset shaft
balance. It is essential that locating
mark
on com-
panion flange be in alignment with
mark
on propeller
shaft yoke for optimum balance.
MINOR
SERVICES
AND
REPAIRS
ALIGNMENT
OF
ENGINE
AND
PROPELLER
SHAFT
All
necessary differential pinion angle require-
ments are designed and built into
rear
upper and
lower control arm geometry. Slots in the
engine
support
rear
crossmember provide for fore and aft
movement of engine-transmission assembly to pro-
vide for variation in positioning.
MAJOR
REPAIRS
REMOVE
PROPELLER
SHAFT
1.
Mark
propeller shaft
rear
yoke
and
differential
companion flange to insure their correct alignment
on re-assembly.
2. Remove U-bolt nuts, lockplates (or lockwashers)
and
U-bolts from
rear
axle drive pinion companion
flange.
3.
If bearing tie wire has
been
removed, use suit-
able rubber band or tape to hold bearings
onto
journal,
thus preventing
loss
of bearing rollers while
rear
universal joint is being disconnected (Fig.
4C-1).
4. Remove
complete
propeller shaft assembly by
sliding it
rearward
and downward to
disengage
splined yoke from splines on transmission output
shaft.
DISASSEMBLE
UNIVERSAL JOINTS
bearings
from universal joint yokes, use extreme
care
so as not to lose needle
rollers
from
bearings.
On
Pontiac - Because of elastic properties of nylon
retainers
used on Pontiac universal joint bearings,
they
must be
pressed
out which shears nylon re-
tainers
in half, rendering bearings and
journal
un-
suitable
for re-use.
Therefore,
upon re-assembly,
new bearing and
journal
assemblies employing
conventional
snap
ring
retainers must be used.
Consult
parts book for
repair
kit part number.
A.
Differential End
1.
Firebird
and Tempest - Remove two snap ring
retainers
from propeller shaft
rear
yoke bearing
shells by using screwdriver or similar tool.
2. Support
journal
on a press bed in manner that
will
allow propeller shaft yoke to be moved down-
ward.
Support front of propeller shaft on stand so
that propeller shaft is horizontal (Fig.
4C-2).
3.
Using piece of pipe or similar
tool
with
dia-
meter sufficiently large (slightly larger than 1
l/8
H
)
to encircle the bearing shell, apply force on yoke
(Fig.
4C-3) until downward movement of yoke and
stationary position of
journal
forces the bearing as-
sembly almost out top of yoke (Force applied on
yoke
will
shear nylon retainers which hold bearings
in
place - Pontiac only).
4. Rotate propeller shaft 180° and repeat preced-
ing
step
to partially remove
opposite
bearing.
NOTE:
On
Firebird
and Tempest—When removing
Fig.
4c-1
Bearings
Held
in
Place
by Tie
Wire
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