TM 9-2320-266-34
d. If after observing the contact pattern you find it
resembles that in figure 19-24, the drive pinion is too close
to the centerline of the ring gear. The pattern will appear
low on the toe on the drive side and low heel contact on
the coast side. To correct this type of tooth contact
pattern, decrease the thickness of the shim pack located
behind the rear pinion bearing cup (figure 19-25). This
will cause the low toe contact on the drive side to raise and
move toward the heel; low heel contact on the coast side
will raise and move toward the toe.
Figure 19-25. Effect on Tooth Contact Pattern as Shim
Pack Thickness is Decreased.
Figure 19-24. Incorrect Tooth Contact Pattern (Decrease
Shim Pack Thickness).
19-10
