Here’s a 1952 Caterpillar, high-output, D8 (made by Caterpillar Tractor Company). It is currently being used in Mitchell County, Iowa. The track pads were widened to 36" for low ground pressure. The cab from an IH combine keeps one out the weather. It has power steering from a spare D8. This one has s special transmission that will back up faster than going forward-
