127
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 import-
ant 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 proceed-
ing.
Backlash
NOTE: Always set backlash prior to any other
shimming.
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.
PK208B
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.
PK219A
GC033A
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.
Case-Side Shims (Backlash)
p/n mm in.
3307-304
1.3 0.051
3307-305
1.4 0.055
3307-306
1.5 0.059
3307-307
1.6 0.063
3307-308
1.7 0.067
Cover-Side Shims (Ring Gear End-Play)
p/n mm in.
3306-132 1.0 0.039
3306-133 1.1 0.042
3306-134 1.2 0.046
3306-135
1.3 0.051
3306-136
1.4 0.055
3306-137
1.5 0.059
3306-138
1.6 0.063
3306-139
1.7 0.067
To Next Page
Loading...
