GMC 1982 Light Duty Truck Service Manual page 408

4 A -6 PROPELLER SHAFT
Fig. 4A-9--Bearing Cup Removal with Press
4. Press trunnion in opposite direction and remove other
cup as in Step 3.
5. Clean and inspect dust seals, bearing rollers, and
trunnion. Relubricate bearings as indicated in Section
0.
In addition to packing the bearings, make sure that the
lubricant reservoir at the end of each trunnion is filled
with lubricant. In filling these reservoirs, pack
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.
Reassembly Fig. 4A-10
1. Position trunnion into yoke. Paritally install one
bearing cup into yoke. Start trunnion into bearing cup.
Partially install other cup. Align trunnion into cup, and
press cups into yoke.
2. Install lock rings.
1 . T ru n n io n
2 . S e a l
3 . B e a r in g s
Fig. 4A -1 0-U nive rsal Joint Repair Kit
4 . W a s h e r
5 . C a p
6 . S n a p R in g
w- w.....—
Fig. 4A -11--Pressing Out Bearing Cup
Injected Plastic Type
Disassembly
NOTICE: Never clamp drive shaft tubing in a vise as the
tube may be dented. Always clamp on one of the yokes,
and support the shaft horizontally. Avoid damaging the
slip yoke sealing surface. N icks m ay dam a g e the
bushing or cut the seal lip.
1. Support the drive shaft in a horizontal position in line
with the base plate of a press. Place the universal joint
so that the lower ear of the shaft yoke is supported on a
28.57 mm ( 1 - 1 / 8 " ) socket. Place the cross press,
J-9522-3, on the open horizontal bearing cups, and
press the lower bearing cup out of the yoke ear as shown
in figure 4 A - 11. 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 and
bearing cup being removed, as shown in figure 4A-12.
TRUNNION
Fig. 4A-1 2--Using Spacer to Remove Bearing Cup
I V SOCKET
TO SUPPORT
i
SPACER
J 9522-5
BEAR IN G
CUP