TM 9-2320-279-10-1 1-24 Change 8 Equipment Differences and Technical Data (Cont) 1-12. EQUIPMENT DATA (CONT). Table 1-2. Equipment Data (Cont) Model Item WEIGHT (CONT) Gross Vehicle Weight Rating: M977 59,500 lb (27 000 kg) M978 54,000 lb (24 500 kg) M983 w/ crane 54,400 lb (24 600 kg) M983 w/o crane 46,500 lb (21 000 kg) M984A1 95,000 lb (43 000 kg) M985 60,800 lb (27 500 kg) Gross Combination Weight Rating: ALL except M984A1 100,000 lb (45 400 kg) M984A1 114,000 lb (51 700 kg) (Off-road, LO range, 30% maximum grade) 114,000 lb (51 700 kg) (Primary or Secondary road, LO or HI range, 7% maximum grade) 155,000 lb (70 370 kg) (Primary road, LO range) WEIGHT DISTRIBUTION Fifth Wheel Maximum Capacity: M983 w/ crane 15,000 lb (6 800 kg) M983 w/o crane 20,000 lb (9 100 kg) Front Tandem Axles - Curb: M977 w/ winch 21,300 lb (9 650 kg) M977 w/o winch 20,900 lb (9 490 kg) M978 w/ winch 22,100 lb (10 010 kg) M978 w/o winch 21,800 lb (9 860 kg) M983 w/ crane 24,600 lb (11 170 kg) M983 w/o crane 21,800 lb (9 900 kg) M984A1 23,900 lb (10 800 kg) M985 w/ winch 20,900 lb (9 530 kg) M985 w/o winch 20,600 lb (9 370 kg) ALL Front Tandem Axles - Loaded: 30,000 lb (13 600 kg) Rear Tandem Axles - Curb: M977 w/ winch 17,500 lb (7 950 kg) M977 w/o winch 17,000 lb (7 710 kg) M978 w/ winch 16,100 lb (7 290 kg) M978 w/o winch 15,500 lb (7 040 kg) M983 w/ crane 14,600 lb (6 630 kg) M983 w/o crane 10,400 lb (4 700 kg) M984A1 27,000 lb (12 300 kg) M985 w/ winch 18,700 lb (8 470 kg) M985 w/o winch 18,100 lb (8 230 kg) Rear Tandem Axles - Loaded: M977 through M983 32,000 lb (14 500 kg) M984A1 65,000 lb (29 500 kg) M985 38,000 lb (17 200 kg)