The first thing is how are you going to hook it up. You'd probably want to build some sort of a mount for the draw bar. I don't think I would like to put those forces on the 3pt arms. Then if you lock the rear brakes to use the winch, I think you would just drag the tractor depending on how big your logs are unless you are thinking of chaining the front of the tractor to a bigger tree which I wouldn't do. If you could winch pull the log without dragging the tractor, why not just use the tractor to pull the logs. Much cheaper and definately easier on the tractor so you don't split the case by accident.