my son and I had a little tractor party tonite, in my little shop, and got a few of the workers repaired. My oldest(59) model, got a new reverser belt, as the old one threw a chunk out, the newer(59) needed a different carb, and my sons 1962 "600", got a new replacement engine that I found, that only has a few hours on it. Here a picture of a room full of David Bradley riding machines and attachments.