Disassembly Of Propeller Shaft; Disassembly Of Universal Joint-A, B Series; Assembly Of Propeller Shaft; Disassembly Of Universal Joint-H And X Series - Pontiac TRANS AM 1977 Service Manual

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1 9 7 7 PONTIAC SERVICE M A N U A L
these parts.
DISASSEMBLY OF PROPELLER SHAFT
Disassembly of Universal Joint
-
A, 6 Series
When disassembling a propeller shaft, one or both of the
two types of universal joints, as shown in Fig. 4A-14, may
be found.
SHEARED NYLON
INJECTION RINGS
INJECTION RING
-REMOVED
FROM
BEARING CAP
4839
Fig.
4A-15
Pressing Out U-Joint Bearing
Fig.
4A-14
Production Universal Joints
ASSEMBLY OF PROPELLER SHAFT
1. Position propeller shaft and spider press J 9522-3 in
power ram equipped with base plate J 8853 and ram screw
adapter J 9522-2 (Fig. 4A-15).
2. Actuate the pump to force the spider and bearing to
shear the nylon retaining ring and remove the bearing.
3. Release pump valve, rotate propeller shaft 1/2
revolution and install spider guide J 9522-7 into yoke bore
of removed bearing and onto the journal end of the spider.
4. Position propeller shaft as before and use spider press
and power ram hydraulic pump to shear the nylon injection
ring and remove the opposite bearing (Fig. 4A-16).
The above procedures should also be used to disassemble
the front universal joint.
Once a production universal joint is disassembled, it
cannot be reassembled as there are no snap ring grooves
provided in the bearing cap.
Disassembly of Universal Joint
-
H and X Series
The universal joints are of the extended life design and
do not require periodic inspection or lubrication; however,
when these joints are disassembled, repack bearings and
lubricant reservoir at end of spider with high-melting point
wheel bearing lubricant and replace the dust seals.
1. Remove bearing cap snap ring from yoke.
2. Support rear yoke on a piece of 1-1/4" I.D. pipe on
an arbor press.
3. Using a suitable socket or rod, press on spider until
bearing cap is almost out. Grasp cap in vise and work cup
out of yoke.
The bearing cap cannot be fully pressed out.
4. Rotate propeller 1/2 revolution and remove opposite
bearing cap using the procedure in step 3.
Assemble of Universal Joint
-
A and 6 Series
When reassembling a propeller shaft, install complete
universal joint repair kits. Repair kits are listed in the Pontiac
Master Parts Catalog under Group 5.442 and include a spike,
four bearing assemblies, four delrin spacers, four seals and
four shields. The four bearings come equipped with snap rings
(Fig. 4A- 17).
1. Make certain the shields and seals are in firm position
and not damaged on the spider and install the spider in the
yoke. The spider may face in either direction.
2. Install spider guide J 9522-7 into one yoke bore and
position spider journal into the guide. Push guide in far
enough for opposite journal to extend slightly above yoke
bore. Spiker journals and bearings must be free of dirt or
foreign material (Fig. 4A- 18).
3. Place the propeller shaft and yoke assembly in position
with the Power Ram and Pump. Inspect bearing cup to see
that all needle bearings are in place and lubricated. Make
certain the Delrin Washer is in place against the needle
bearings. Position bearing straight over yoke bore and onto
spider journal. Failure to pilot the spider journal into the
bearing could cause the bearing needles to become dislodged
during installation of the bearing cup (Fig. 4A-19).
5. Clean and inspect all parts and relubricate bearings.
The above procedure should also be used to disassemble
front universal joint.

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Firebird 1977

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