with a larger grille and vertically stacked quad headlamps. After seeing almost no change since 1974, International ended production of the Cargostar (the final Loadstar-based truck). As the company did not develop a tilt-cab truck derived from the S-series (or a distinct vehicle), International introduced the 400/500/700/900 low-cab COE, produced by Nissan Diesel (UD). The first imported vehicle marketed by the company, the 400-900 was marketed through 1991. Overseas subsidiaries Australia Australian Army designs International Harvester Australia, a subsidiary of the US manufacturer, had a long relationship with the Australian Army with the US-designed AS series trucks in the early 1950s. The AS164 4x2 used as a tractor unit and the 4x2 AS161 used as a trayback troop transport The association between International Harvester Australia and the Australian Army developed and in conjunction with the Army Design Establishment of the Australian Commonwealth Department of Supply, designed and constructed a range of trucks for the Australian Army. With the body loosely based upon the design of cab 13 of the Canadian Military Pattern truck, the first prototype built in 1959 was the International Truck Cargo Ton General Service, Australian No.1 Mk1. which was followed by the Mk2 prototype. A variant with a midmounted, 20,000-lb winch, resulted in the first production model, the Mk3 entering service in 1963 – just in time for Australia's entry into the Vietnam War. A five-ton 6×6 version was to follow with three major variants the Truck Cargo 5 Ton with winch F1 which replaced the Mk3 in Vietnam service. The F2 a tipper version that replaced the International Harvester AB160 "teaspoon Tipper" in both Vietnam and Borneo theatres of operations. The F5 wrecker with a lack of 4×4 ton trucks available because of the Vietnam War, the Mk3 was supplemented with further 4×4 production with the updated Mk4 version which shared the cab with the 6×6 variants Production of The Australian No.1. range of trucks were produced until 1973. The Mk3, Mk4, F1, F2 and F5 saw service until the late 1980s. ACCO The Australian designed and built International Australian A-line Cab Over (AACO) was first produced in the late 1960s and later in 1972 the Australian C-line Cab Over (ACCO) . The ACCO is a cab over engine type truck and has been offered in 4x2, 4x4, 6x2, 6x4, 8x4, and 10x4 configurations. Engines used have been Cummins, Caterpillar, Detroit Diesel, Perkins, Neuss or GMC