You see classic tractors almost everywhere! We saw this tractor along main street in Fullerton, Nebraska. It's a John Deere 4020 Diesel. The 4020 was in the Deere lineup from 1963 to 1972. The vast majority featured diesel engines, with more than 168-thousand diesel 4020s built. The 6-cylinder engine delivered about 83 horsepower on the drawbar. The 4020 is still highly popular with collectors. And we have a wide variety of 4020s and other green machines on some of our DVDs. You can look over th