Sheppard Diesel produced its SD-4 farm tractor model From 1954 Until 1956 in United states with a Open operator station cabin and more than 231 units were build. Talking dimensions and weight, this model weighs 6250 lbs or 2835 kg has , 140.7 inches [357 cm] of length and 83.5 inches [212 cm] of height while maintaining a wheelbase of 91.5 inches [232 cm] the front tread is about 56 to 80 inches while the rear tread is 56 to 84 inches . This tractor can fit ag tires of 6.00-16 front and 6.00-16 back . This Sheppard Diesel SD-4 is powerd by a diesel engine it has 319 ci or 5.2 L 4 cylinders ,it can produce 51 hp or 38.0 kW at 1650 (rpm),. This machine has 4x2 2WD wheel drive system,10 forward and 2 reverse transmission system.