The ATC Terratrac 356 is an agricultural crawler tractor produced from 1955 to 1956 by ATC, a part of J.I. Case. It was built in Churubusco, Indiana, USA. The tractor is powered by a Continental F-140 2.3L 4-cylinder liquid-cooled gasoline engine producing 36.5 hp (27.2 kW) at 1850 RPM. It features a 3-speed gear transmission with 3 forward and 1 reverse gears and a dry disc clutch. The drive system is crawler type with spur gear final drives and contracting band brakes. The operator station is open. The tractor weighs 4830 lbs (2190 kg) and measures 92 inches in length and 63.5 inches in height, with a ground clearance of 16 inches. It can pull 3 14-inch plows. The belt pulley diameter is 6 inches with a width of 7 inches, running at 664 RPM and a speed of 1043 ft/min.