94
CC878
7. Secure the pinion gear in a bearing puller; then
remove the pinion bearing using a press. Account for
a collar and a bearing.
CC879
NOTE: If gears are being replaced, use the existing
shims.
NOTE: If the gear case housing is being replaced,
proceed to the following Shimming Procedure/Shim
Selection sub-section.
Shimming Procedure/Shim
Selection
It is very important to adjust bevel gears for the proper
running tolerances. Gear life and gear noise are greatly
affected by these tolerances; therefore, it is very important
to properly adjust any gear set prior to final assembly.
The following procedure can be used on both front differ-
ential or rear drive gear case.
NOTE: All bearings must be installed in the gear
case and the pinion properly installed before pro-
ceeding.
Backlash
NOTE: Always set backlash prior to any other shim-
ming.
1. Install the existing shim or a 0.051-0.055-in. shim on
the gear case side of the ring gear assembly.
GC031A
2. Install the ring gear with shim in the gear case; then
while holding the pinion stationary, rock the ring
gear forward and back to determine if any backlash
exists. If no backlash exists, install a thicker shim
and recheck.
GC059A
3. Install the bearing flange onto the gear case cover
making sure the alignment/locating pin engages the
locating hole in the cover; then make sure the bear-
ing flange is completely seated in the cover.
4. Install the existing shim or a 0.063 in. shim on the
cover side of the ring gear; then place the assembled
gear case cover onto the gear case and secure with
three cap screws. Tighten evenly using a crisscross
pattern.
GC059B
Shims
p/n
mm
in.
0402-405
1.3
0.051
0402-406
1.4
0.055
0402-407
1.5
0.059
0402-408
1.6
0.063
0402-409
1.7
0.067
Manual
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