TM-9-2320-272-24-4

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 4 OF 4

JUNE 1998

TM-9-2320-272-24-4 - Page 465 of 836

TM 9-2320-272-24-4

87.

88.

89.

Carefully align index marks made during disassembly and position two differential gear housings (2)

and (3) on helical ring gear (14) and install with eight screws (15) and slotted nuts (13). Tighten

nuts (13) 130-170 lb-ft (176-231 N•m). Secure with new safety wire (12). Twist ends of safety

wire (12) together until wire is tight. Remove and discard excess safety wire (12).

Place two races (16) over bearings (1) and (4) on differential gear (17) and set assembly in

saddles (18) of differential carrier housing (20). Ensure races (16) seat inside threads of saddles (18).

If races (16) do not fully seat in saddles (18), check that helical ring gear (14) is in mesh with helical

pinion gear (19).

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