Chevrolet 1988 Light Duty Truck Repair Manual page 203

Figure 3 2 — Checking the Pinion Depth Setting
• Remove the pinion nut (12), washer (11), pinion
flange (10), slinger (8) and bearing cone (7).
10. Preload shims (6).
• In s ta ll th e s h im s th a t w ere re m ove d , or
measure the old shim s and replace them with
new shims if necessary.
11. Outer bearing (7) and slinger (8).
• A pply a light coat of axle lubricant to the pinion seal
liP-
12. O uter pinion oil seal (9) using D-163 (N ational)
sealer installer (figure 33).
13. Pinion flange (10).
14. W asher (11) and a new pinion nut (12).
&
T ig h te n (F ig u re s 34 and 35)
The nut (12) w hile holding the pinion with
J 8614-01. Tighten the nut until it requires a
torque of 2.26-4.53 N m (20-40 in. lbs.) to
rotate the pinion.
Remove shims to increase the preload.
Add shims to decrease the preload.
Figure 3 3 — Installing the Pinion Seal
DANA REAR AXLES 4B5-11
A SSEM B LIN G THE D IFFE R EN TIA L TO TH E AXLE
HOUSING
Tools Required:
J 23690 Differential Side Bearing Installer
J 8092 Driver Handle
J 24385-01 Differential Carrier S preader
1. A ssem ble the differential case (22) with m aster
bearings installed to the axle housing. The pinion
must be installed.
2. Mount a dial indicator havi,ng a m inim um travel of
0.200-inch with a m agnetic base on the ring gear
bolt side of the housing (figure 36).
3. Place the indicator tip on the chalk mark made
earlier.
4. Force the ring gear into mesh with the pinion. Rock
the ring gear to allow the teeth of the gears to mesh.
5. W hile the force is still applied to the differential
case, set the dial indicator to zero.
6. Force the differential case away from the pinion
gear to obtain an indicator reading. Repeat this
action until a consistant reading is obtained. This
will be the size of the left shim pack.
Figure 35— Checking Pinion Preload