Allis Chalmers produced its 5020 farm tractor model From 1977 Until 1985 in United states with a Two-post ROPS cabin and more than 8,500 units were build. Talking dimensions and weight, this model weighs 1900 lbs or 861 kg has 48 inches [121 cm] of width, 98.9 inches [251 cm] of length and 85 inches [215 cm] of height while maintaining a wheelbase of 59.8 inches [151 cm] the front tread is about 38.6 inches while the rear tread is 39.2/51 inches . This tractor can fit ag tires of 5.00-15 (2WD) front and 5.00-15 (2WD) back or lawn tires of 20x8.00-10 front and 20x8.00-10 back . This Allis Chalmers 5020 is powerd by a diesel engine it has 77.1 ci or 1.3 L 2 cylinders ,it can produce 25 hp or 18.6 kW at 2500 (rpm), the fuel tank capacity is 7 gal or 26.5 L. This machine has 4x2 2WD wheel drive system,12 forward and 3 reverse sliding gear transmission system.