The 70 diesel tractor was not introduced till 1954. The diesel engine had 376 cubic inches and produced 54 hp. This was John Deere's first diesel row-crop tractor. The pony motor was a new 4 cylinder model which ran 5500 rpm. There were 41,030 model 70 tractors built.The serial number of our 70 diesel is #7042422 making it a 1956 model.It has the factory round wide front axle . It has factory power steering and the rear cast rims are call vegetable rims.Our tractor came from Sidney, Manitoba.