David Brown produced its 770 Selectamatic farm tractor model From 1965 Until 1970 in United states with a Open operator station cabin. Talking dimensions and weight, this model weighs 3110 lbs or 1410 kg has 64 inches [162 cm] of width, 112.5 inches [285 cm] of length while maintaining a wheelbase of 75 inches [190 cm] the front tread is about 48/52/56/60/64/68/72/76 inches while the rear tread is 48/52/56/60/64/68/72/76 inches . This tractor can fit ag tires of 5.50-16 front and 5.50-16 back . This David Brown 770 Selectamatic is powerd by a diesel engine it has 146.1 ci or 2.4 L 3 cylinders ,it can produce 36 hp or 26.8 kW at 2055 (rpm), and has a torque of 100 lb-ft or 135.6 Nm at 1400 (rpm) the fuel tank capacity is 11.4 gal or 43.1 L. This machine has 4x2 2WD wheel drive system,12 forward and 4 reverse transmission system.