Chevrolet 30 Series 1967 Service Manual page 213

INSPECTION
Wash ends of propeller shaft in cleaning solvent, in­
spect for damage and excessive wear on splines, trun­
nions and bearings. Examine sleeve seal, washer and
retainer for damage or deterioration.
DISASSEMBLY
1. Remove trunnion bearings from propeller shaft yoke
as follows:
a. Remove lock rings from yoke and lubrication fit­
ting from trunnion.
b. Support yoke in a bench vise.
c. Using soft drift and hammer, drive on one trun­
nion bearing to drive opposite bearing from yoke.
d. Support other side of yoke and drive out other
bearing.
e. Remove trunnion from propeller shaft yoke.
2. If equipped with sliding sleeve, remove trunnion
bearings from sleeve yoke in the same manner as
above. Remove seal retainer from end of sleeve and
pull seal and washer from retainer.
3. Remove bearing support as follows:
a. Remove dust shield, or, if equipped with flange,
remove cotter pin and nut and pull flange and de­
flector assembly from shaft.
b. Pull support bracket from rubber cushion and pull
cushion from bearing.
c. Pull bearing assembly
grease retainers and slingers
bearing.
d. Remove inner deflector from shaft if replacement
is necessary.
ASSEMBLY
1. Assemble bearing support as follows:
a. Install inner deflector on propeller shaft, if re­
moved, and prick punch deflector at two opposite
points to make sure it is tight on shaft.
b. Pack retainers with waterproof grease, insert a
slinger (if used) inside one retainer and press
this retainer over bearing outer race.
NOTE: Waterproof grease is required to pre­
vent entrance of water and foreign material into
bearing.
c. Start bearing and slinger assembly straight on
shaft journal. Support propeller shaft and, using
suitable length of pipe over splined end of shaft,
press bearing and inner slinger against shoulder
on shaft.
d. Install second slinger on shaft and press second
retainer over bearing outer race.
e. Install dust shield over shaft, small diameter
first and press into position against outer slinger
or, if equipped with flange, install flange and de­
flector assembly as follows:
(1) Install deflector on flange, if removed, and
prick punch at two opposite points to make
sure it is tight on flange.
(2) Align centerline of flange yoke with center-
line of propeller shaft yoke and start flange
straight on splines of shaft with end of flange
against slinger.
(3) Install retaining nut and tighten to 160-180
ft. lbs. torque. Install cotter pin.
from shaft. Remove
(if used) from
REAR SUSPENSION AND DRIVE LINE 4-55
f. Force rubber cushion onto bearing and coat out­
side diameter of cushion with brake fluid.
g. Force bracket onto cushion.
2. Assemble trunnion bearings to propeller shaft as
follows:
a. On extended life universal joints when performing
service operations that require disassembly of
the universal joint, repack bearings with a high-
melting point wheel bearing lubricant and replace
trunnion assembly dust seals.
NOTE: In addition to packing the bearings,
make sure the lubricant reservoir at the end of
each trunnion is completely filled with lubricant.
In filling these reservoirs, pack lubricant into
the hole so as to fill from the bottom. This will
prevent air pockets and ensure an adequate sup­
ply of lubricant.
To replace trunnion dust seal, remove the old dust seal
and place new seal on trunnion - cavity of seal toward end
of trunnion - then position Tool J - 21548 over end of trun­
nion and into cavity portion of seal. P ress seal onto
trunnion until tool bottoms against shoulder on trunnion
(fig. 99).
Fig . 9 9 - " U " Jo in t Trunnion Seal Installation
NOTE:
Installation of seal is critical to proper
sealing - use specified tool during installation to
prevent seal distortion and to assure proper
seating of seal on trunnion.
b. On all other universal joints lubricate trunnion
bearing rollers and install new seal rings.
c. Insert trunnion in propeller shaft yoke and press
bearings into yoke and over trunnion hubs far
enough to install lock rings.
d. Hold trunnion in one hand and tap propeller shaft
yoke lightly to seat bearings against lock rings.
3. On rear propeller shafts, install sleeve yoke over
trunnion hubs and install bearings in the same man­
ner as above.
INSTALLATION
Propeller shafts may be installed by reversing the pro­
cedure used in removal when the following notes are
observed.
NOTE 1: Before installing a rear propeller
CHEVROLET TRUCK SERVICE MANUAL