Notes: This heavy truck was in production until 1974. The cab is identical to that used on the International 2500 kg truck, but the body is much larger and heavier. The cargo has drop sides and a drop tailgate, with removable bench seats, removable bows, and a removable canvas cover. Some have a cargo loading crane. Variants include a dump truck, a road paving vehicle, a fire engine, a tanker, and a recovery vehicle.

Notes: This is a Mack RM6866RS 6x6 heavy truck produced for the Australian military by Mack of Australia. They began to be delivered to the Australian military in 1981 and all 906 units were delivered by 1986. They were upgraded for continued use in the mid-1990s. An individual MC-3 may or may not have a winch in the front with a capacity of 8 tons. Some of them have a materiel-handling crane with a capacity of 3.4 tons. Other variants include a wrecker, a tanker, an artillery tractor with ammunition racks, a cement mixer, a dump truck, a vehicle to lay asphalt and spray tar, and a bridging vehicle.