What is your favorite tractor from the 1970’s? In this video viewers will see 12 big iron tractors from the major tractor brands in United States from the 1970’s at work out in the field. Watch for an Allis-Chalmers 7045, Big Bud HN-320, Case 1570, Ford 9700, International Harvester 1066, John Deere 4840, Massey Ferguson 1155, Minneapolis-Moline G-1355, Oliver 1955, Steiger Panther III ST-325, Versatile 875 and White. 2-135.