I have a 1950 TO-20 I use to haul a trailer, and move my boat around. Does Ferguson have an attachment to the swing arm that will prevent the drawbar from turning over? May 30, 2015.
Two versions of the device you are describing are currently being reproduced. The first one is available from Dennis Carpenter Ford Tractor Parts as well as many other after-market parts sellers including Steiner Tractor Parts. Check prices as they vary. See the link below: https://www.dennis-carpenter.com/en/tractors/lift-amp-pto/drawbar/9n-5182-l-drawbar-lock
Another version which is more compact, fits over the end of the drawbar and the end of the lift arm. I believe that version is available from Red Rock Manufacturing, Pella, Iowa.