Center Support Bearing - Chevrolet 10 1971 Series Chassis Service Manual

4. Press trunnion in opposite direction and remove
other cup as in Step #3.
5. Clean and inspection dust seals, bearing rollers,
and trunnion. Relubricate bearings as indicated in
Section 0.
In addition to packing the bearings,
NOTE:
make sure that the lubricant reservoir at the
end of each trunnion is completely filled with
lubricant. In filling
lubricant into the hole so as to fill from the
bottom (use of squeeze bottle is recommended).
This will prevent air pockets and ensure an
adequate supply of lubricant.
6. If not installing a
place dust seals on trunnions--cavity of seal toward
end of trunnion. Press seal onto trunnion exercising
caution during installation to prevent seal distortion
and to assure proper seating of seal on trunnion.
If installing seal on small size trunnion,
NOTE:
seal installer J-21548 should be used (fig. 49).
7. Position trunnion into yoke. Partially install one
bearing cup into yoke. Start trunnion into bearing
cup. Partially install other cup. Align trunnion into
cup, and press cups into yoke.
8. Install lock rings.
Fig. 48— Universal Joint Repair Kit
1. Trunnion
2. Seal
3. Bearings
Fig. 4 / — Bearing C u p Removal
these reservoirs, pack
joint service kit Figure 48,
4. Cap
5. Snap Ring
REAR SUSPENSION AND DRIVE LINE 4-23
Center Support Bearing (Fig. 50)
a. Remove dust shield.
b. Remove strap retaining rubber cushion from
bearing support.
c. Pull support bracket from rubber cushion and
pull cushion from bearing.
d. Pull bearing assembly from shaft.
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. Fill space between inner dust shield and bearing
with lithium soap grease.
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 dust shield over shaft, small diameter
first and press into position against outer slinger.
e. Install rubber cushion onto bearing.
f . Install bracket onto cushion.
g. Install retaining strap.
Installation
1. For models with one piece propeller shafts, slide
shaft into transmission and attach rear U-joint axle.
Torque bolts to specifications.
Fig. 49— " U " Joint Trunnion Seal Installer
10-30 CHEVROLET TRUCK SERVICE MANUAL