FRONT DIFFERENTIAL CARRIER ASSEMBLY REPLACEMENT/REPAIR/ADJUSTMENT - continued

TM 10-3930-673-34

(c)

Inspect contact patterns on ring

gear (22). Good hand rolled

pattern (E) will show contact toward

toe of gear tooth and in the center

between top and bottom of tooth. A

high pattern (F) will show contact

closer to top of gear tooth. A low

pattern (G) will show contact toward

bottom of gear tooth. When in

operation, pattern will extend to

approximately full length of gear

tooth.

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(d)

If necessary, install thinner shim

pack (32) under pinion bearing

cage (28) to correct high contact

pattern.

(e)

If necessary, install thicker shim

pack (32) under pinion bearing

cage (28) to correct low contact

pattern.

(f)

If necessary, decrease backlash,

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Step (3), (i), to move contact

patterns toward toe of ring gear

teeth.

(g)

If necessary, increase backlash, Step (3), (h), to move contact patterns toward heel of ring gear

teeth.