GMC T Series 1994 Repair Manual page 154

PINION INSTALLATION (Figures 1, 15 through 18)
+«-
Install or Connect
Tools Required:
J 22388 Pinion Oil Seal Installer
J 22804-1 Pinion Oil Seal Spacer
J 5590 Rear Pinion Bearing Cone Installer
• The bearing cups should have been installed in
" Pinion Depth Adjustment."
1. The pinion inner bearing (13) to the pinion.
• Press the bearing onto the pinion until the bear­
ing cone seats on the pinion shim(s) (figure 15).
2. A new collapsible spacer (11).
• Lubricate the pinion bearings with axle lubri­
cant.
3. Pinion (15) to the axle housing.
4. Outer pinion bearing (10) onto the pinion using
J 5590.
• Hold the pinion forward from inside the case
while driving the bearing onto the pinion.
5. Pinion oil seal (9) using J 22388 and J 22804-01
(figure 16).
6. The pinion flange (8) to the pinion by tapping it with
a soft-faced hammer until a few threads show
through the pinion flange.
NOTICE: Refer to "Notice" on page 4B3-1.
7. The pinion washer (7) and nut (6) while holding the
pinion flange with J 8614-01 (figure 17).
Tighten
• The nut until the pinion end play is just taken
up. Rotate the pinion while tightening the nut to
seat the bearings. Once there is no end play in
the pinion, the preload torqu e should be
rechecked.
• Remove J 8614-01. Using an inch-pound torque
wrench, check the pinion preload by rotating the
pinion with the wrench. Preload should be at or
below 2.3 to 2.8 N-m (20 to 25 lbs. in.) on new
bearings, or 1.1 to 1.7 N-m (10 to 15 lbs. in.) for
used bearings (figure 18).
Figure 17— Installing the Pinion Flange