Assembly Of The Axle; Pinion Bearing Cup Installation; Pinion Depth A Djustm Ent - GMC T Series 1994 Repair Manual

Figure 18— Removing the Pin (K1, 2 Models)
Important
Apply axle lubricant to all bearings, seal lips, gears,
thrust washers, and bearing surfaces at assembly.
PIN IO N BEARING CUP
INSTALLATION
-H - Install or Connect (Figures 1 through 4, 20,
and 21)
Tool Required:
J 36598 Holding Fixture and Pinion Service Tool
• Mount the left carrier case in J 36598. Use the
J 36598-6 adapter plate for K1, K2 models. Tight­
en the attaching bolts securely.
I. Outer bearing cup (40). Use the forcing screw and
J 36598-3 (K1, 2) or J 36598-4 (K3) (figure 20).
Inner bearing cup (39).
I.
A. Remove J 36598-3 or J 36598-4 from the forc­
ing screw.
B. Place pilot J 36598-15 in the pinion seal bore.
C. Extend the forcing screw through the pinion
bore.
D. Install J 36598-3 (K1, 2 models) or J 36598-4
(K3 models) on the forcing screw (figure 21).
E. Rotate the forcing screw until the installer is
snug against the bearing cup.

ASSEMBLY OF THE AXLE

Figure 19— Replacing the Carrier Bushings
F. Rotate the tool several times to make sure the
bearing cup is not cocked in the bore.
• Pull the bearing cup into place with the forcing
screw (figure 21).
PINIO N DEPTH ADJUSTM ENT
Tools Required:
J 36601 Pinion Depth Setting Gauge
J 29763 Dial Indicator
J 21777 Pinion Setting Gauge Set
1. Refer to figures 1 through 4 and 22.
2. Pinion depth is adjusted by selecting a shim (38) of
the proper thickness.
3. Lubricate the pinion bearings liberally with axle
lubricant.
4. Assem ble J 29763 to the proper gaging arm
(J 36601-4 for K1, 2 models, J 36601-3 for K3
models).
5. Install the pinion bearings and hold them in place.
6. Insert the threaded rod of J 36601 through the pin­
ion bearings.
7. Install the proper pilot, washer, and nut.
8. Tighten the nut while holding the threaded rod with
a wrench to adjust bearing preload. Adjust the nut
to obtain a preload of 1.0-1.6 N-m (10-15 lbs. in.)
using an inch pound torque wrench. Rotate the
shaft several times to make sure the bearings have
seated, then measure again.
F5285