GMC 1982 Light Duty Truck Service Manual page 431

Fig. 4Bl-5--Push Axle Shaft Inward
Remove the axle shaft and repeat steps 5 and 6 for the
opposite axle shaft.
7. W hen installing C-locks keep the pinion shaft partially
withdrawn. Place the C-lock in the same position shown
in figure 4B1-4. Carefully withdraw the axle shaft until
the C-lock is clear of the thrust block. W hen both locks
are installed, install the pinion shaft and lock screw.
O il S e a l/B e a rin g -R e p la ce m e n t Fig. 4B 1-6
1. Remove oil seal by using button end of axle shaft.
Insert button end behind the steel case of the oil seal,
then pry seal out of bore If both seal and bearing are
being replaced proceed to step 2.
2. Using J-23689, insert into bore so that tool grasps
behind the bearing. See figure 4B1-7. Slide washer
against outside of seal (or bearing) and turn nut finger
tight against washer. A ttach Slide H am m er J-2619
and remove bearing and seal.
On 9 1/2 inch ring gear axles, use tool J-29712. Insert
(wobble plate) into axle tu be so th a t it grasps
Fig. 4B 1-6--O N S eal a n d W h e e l Bearing
Fig. 4Bl-7--Wheel Bearing Removal
behind the bearing. Center receiver on axle tube and
tighten nut.
3. Back off nut and remove bearing and seal from tool.
4. Lubricate cavity between seal lips with wheel bearing
lubricant and also lubricate new bearing with wheel
bearing lubricant.
5. To reinstall bearing, use J-23690 Installer, or J-29709
for the 9 1/2 inch ring gear. Install bearing until tool
bottoms against tube as illustrated in figure 4 B 1 -8.
6. To install oil seal, place seal on J - 2 1128 or J-29713 for
the 9 1/2 inch ring gear and drive into bore until tool
bottoms against end of tube. See figure 4B1-9. This tool
installs the seal flush with the end of the tube.
A x le S h a ft-ln s ta lla tio n
1. Slide axle shaft into place. Exercise care that splines on
end of shaft do not damage oil seal and that they
engage with splines of differential side gear.
Fig. 4 B l-8 --W h e e l Bearing Installation
REAR A X L E 4 B 1 -3