TM 9-2320-260-34-1
10-8. DIFFERENTIAL AND DIFFERENTIAL CARRIER REPAIR (Contd)
46. Position shims (2), same thickness pack as removed, on retainer (7) and slide mainshaft (4) into
differential carrier housing (8). Aline inner race (3) with rear roller bearing (9).
47. Aline holes in shims (2), differential carrier housing (8), bore (1), and retainer (7) and install with
eight washers (5) and screws (6). Tighten screws (6) 93-120 lb-ft (126-163 Nm).
CAUTION
Correct bevel ring gear and pinion gear contact pattern is critical
to correct operation of differential and differential earner assem-
bly. Incorrect contact pattern can result in noisy operation or
premature failure of these two gears.
48. Check bevel ring gear (10) and pinion gear (11) tooth contact pattern by applying blue oil base
pigment to at least three clean bevel ring gear ( 10) teeth. Turn mainshaft (4) for three full rotations
of bevel ring gear (10).
49. Examine bevel ring gear (10) teeth contact pattern (13) with pinion gear (11). Pattern should be
centered both ways on teeth (12) and cover over 2/3 of tooth (12) contact surface.
NOTE
If pattern is not correct, perform steps 50 through 68.
If pattern is correct, go to step 70.
50. If contact pattern resembles pattern (14), perform steps 54-57, 58, and 62-68.
51. If contact pattern resembles pattern (15), perform steps 54-57, 59, and 62-68.
52. If contact pattern resembles pattern (16), perform steps 54-57, 60, and 62-68.
53. If contact pattern resembles pattern (17), perform steps 54-57, 61, and 62-68.
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