GMC 1989 Light Duty Truck Repair Manual page 223

16. Pinion shaft nut (62) and washer (61) using J 3453
to hold the pinion yoke (figure 11).
17. Pinion yoke (60) using J 7804-01 (figure 12).
18. Pinion cage (54) from the carrier by using bolts in
the puller holes of the cage. Thread the bolts in, to
push the cage away from the carrier (figure 13).
19. Shim pack (50) from the cage.
• Wire the shims together.
20. Pinion gear (37) from the cage by pressing it out in
an arbor press.
21. Pinion oil seal (58) from the pinion cage.
22. Outer bearing (57) from the cage.
23. Inner bearing (53) from the pinion using J 22912 and
an arbor press (figure 14).
24. Pilot bearing retaining ring (51).
25. Pilot bearing (52) from the pinion gear (37) using
J 22912.
Figure 12— R em oving th e Pinion Flange
12-INCH RING GEAR (ROCKWELL) 4B6-5
Do not steam clean drive parts having ground and
polished surfaces such as gears, bearings, and shafts.
These parts should be cleaned in a suitable solvent. All
parts should be disassembled before cleaning.
Parts should be thoroughly dried immediately after
cleaning. Use soft, clean, lintless rags. Parts may be dried
with comressed air. Do not allow the bearings to spin
while drying them with compressed air.
It is very important to carefully and thoroughly inspect
all drive unit parts before reassembly.
Through inspection of the drive parts for wear or stress
ans subsequent replacement of worn parts will eliminate
costly drive component repair after reassembly.
Figure 14— R em oving the Pinion In n er Bearing
CLEANING
INSPECTION
F-04781