You hit the nail on the head Roger, the old Ford's only had the three point draw bar. They came with a set of stabilizer bars to lock it at the correct hieght and the lock to keep it from truning in the balls. One dissingaged the lift when the draw bar was used. But farmers being farmers, they seldom used them. We like to think we are fast enough to catch it. I remember a neighbor pulling his pick up truck with one, was on a black top road. When the truck driver let the clutch out the tractor came over backwards so fast he never knew what happened. Truck didn't start, tractor didn't get damaged, buried him that week.