Specifications

61
Assembly and Installation
MAINTENANCE MANUAL
5. Change the thickness of the shim pack be-
tween the pinion inner bearing cap and the
differential case to move the contact pat-
terns between the top and the bottom of the
gear teeth.
A. Remove the drive pinion, inner bearing cap
and shims from the differential case. See
the Section 3.
• Tocorrectahigh-contactpattern:Increase
the thickness of the shim pack. When you
increase the thickness of the shim pack, the
drive pinion will move toward the ring gear.
Figure 5.55.
• To correct a low contact pattern: Decrease
the thickness of the shim pack. When you
decrease the thickness of the shim, the drive
pinion will move away from the ring gear. Fig-
ure 5.56.
B. Install the inner bearing cap, the shims and
the drive pinion in the differential case. See
the procedure in this section.
C. Repeat Step 2 through Step 5 until the con-
tact patterns are in the center between the
top and bottom of the gear teeth.
6.Adjusttheringgearbacklashwithinthespec-
icationrange to movethe contact patterns
to the correct location along the length of the
gear teeth. See the procedure in this section.
A. Decrease the backlash to move the contact
patterns toward the toe of the ring gear teeth.
Figure 5.57.
B. Increase the backlash to move the contact
patterns toward the heel of the ring gear
teeth. Figure 5.58.
C. Repeat Step 2 through Step 4 and Step 6
until the contact patterns are at the correct
location along the length of the gear teeth.
Figure 5.55
Figure 5.56
Figure 5.57
INCREASE SHIM PACK
DECREASE SHIM PACK
LOOSEN ADJUSTING
RING THIS SIDE
MOVE PATTERN TOWARD
TOE,LOOSEN ADJUSTING
THIS SIDE
MOVE PATTERN TOWARD
TOE,TIGHTEN ADJUSTING
THIS SIDE
TIGHTEN ADJUSTING
RING THIS SIDE
DECREASE BACKLASH
INCREASE BACKLASH
Figure 5.58