GMC 1989 Light Duty Truck Repair Manual page 200

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
step 6 from the total reading. The reading found in
step 6 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 shim s on the differential side
b e a rin g hub (rin g g e a r sid e ) and d riv e th e
differential bearing onto the hub using J 23690 and
J 8092 (figure 37).
11. Place the proper shim s on the differential side
bearing hub (opposite the ring gear) and drive the
differential bearinq onto the hub using J 23690 and
J 8092.
Figure 3 7 — Installing the D ifferen tial B earings
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 n ot spread the differential carrier
m o r e t h a n 0 . 3 8
O v e r -s p r e a d in g th e c a rr ie r c a n d a m a g e or
distort the carrier.
14. S p rea d th e c a rrie r w h ile e x a m in in g th e 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 th e ir o rigin al
positions.
20. Install the bearing cap bolts (19).
Figure 3 9 — Installing th e D ifferen tial C ase
m m ( 0 . 0 1 5 - i n c h ) . ,
F-04729