GMC 1990 Light Truck Repair Manual page 198

4B5-12 DANA REAR AXLES
7. Remove the indicator and the differential case from
the carrier.
8
. Remove the master bearings from the differential
case.
9. Using the total shim pack size determined earlier,
(Refer to " Determining Total Differential Shim Pack
Size" in this section) subtract the reading found in
6
step from the total reading. The reading found in
6
step will be the shim size on the ring gear side.
The remaining portion of the shim pack will be used
on the side opposite the ring gear. Add an additional
0.38 mm (0.015-inch) of shims to the side opposite
the ring gear to preload the bearings.
10. Place the proper shims on the differential side
bearing hub (ring gear side) and drive the
differential bearing onto the hub using J 23690 and
J 8092 (figure 37).
11
. Place the proper shims on the differential side
bearing hub (opposite the ring gear) and drive the
differential bearing onto the hub using J 23690 and
J 8092.
Figure 37—Installing the Differential Bearings
12. Assemble J 24385-01 to the axle housing as shown
in figure 38.
13. Assemble the dial indicator as shown in figure 38.
Preset the gage at least 0.020-inch, and then rotate
the indicator housing to zero the dial.
NOTICE: Do not spread the differential carrier
more
Over-spreading the carrier can damage or
distort the carrier.
14. Spread the carrier w hile exam ining the dial
indicator.
15. Remove the dial indicator.
16. Place the bearing cups (20) onto the bearings.
17. Install the differential assembly into the carrier.
• Use a rawhide hammer to seat the differential
assembly in the axle housing (figure 39).
18. Remove the spreader.
19. Install the bearing caps (18) in their original
positions.
20. Install the bearing cap bolts (19).
F-04725
Figure 39—Installing the Differential Case
than 0.38 mm (0 .0 1 5 -in c h ).,