Chevrolet 1977 light duty truck Service Manual page 342

Fig. 4A-9--Bearing Cup Removal w ith Vise
until bearing cup is almost out. G rasp cup in vise and
work cup out of yoke. See figures 4A-9 and 4A-10.
N OTE: The bearing cup cannot be fully pressed
out.
4. Press trunnion in opposite direction and remove
o th er cup as in Step 3.
5. Clean and inspect dust seals, bearing rollers,
and trunnion. Relubricate
Section 0.
N OTE: In addition to packing the bearings, make
sure that the lubricant reservoir at the end o f each
trunnion is completely filled with lubricant. In
filling these reservoirs, pack lubricant into the hole
so as to fill from the bottom (use o f squeeze bottle
is recom m ended). This will prevent air pockets and
ensure an adequate supply o f lubricant.
Reassembly Fig. 4A-11
1. Position trun nion into yoke. Paritally install one
b earing cup into yoke. Start trunnion into bearing cup.
bearings as indicated in
1. T r u n n io n
2 . S e a l
3 . B e a rin g s
Fig. 4 A -ll--U n iv e rs a l Joint Repair Kit
Partially install other cup. Align trunnion into cup, and
press cups into yoke.
2. Install lock rings.
Injected Plastic Type
Disassembly
NOTE: N ever clamp drive sh aft tubing in a vise as
the tube may be dented. Always clamp on one of
the yokes, and support the shaft horizontally.
Avoid da m a g in g the slip yoke sealing surface.
Nicks may dam age the bushing or cut the seal lip.
1. Support the drive shaft in a horizontal position
in line with the base plate o f a press. Place the universal
joint so that the lower ear o f the shaft yoke is supported
on a 1-1/8" socket. Place the cross press, J-9522-3, on the
open horizontal bearing cups, and press the lower
bearing cup out o f the yoke ear as shown in figure 4A-
12. This will shear the plastic retaining the lower bearing
cup.
2. If the bearing cup is not completely removed,
lift the cross and insert Spacer J-9522-5 between the seal
4 . W a s h e r
5 . C a p
6 . S n a p R in g
l '/ g " SOCKET
TO SUPPORT
YOKE EAR
BUT MUST
CLEAR
BEARING
CUP