I purchased a Swinging Drawbar kit from Stevens Ag Parts, Coushatta, Louisiana ( 1-800-333-9143) for my 1951 TO-30. It works very well and the drawbar can be easily removed for attaching 3-point implements if needed. The part # for the kit is: SDA6 and the price for Drawbar, Hanger and Clevis Assembly was approximately $105.00 plus shipping. It was a bolt-on kit and fit exactly the way it was supposed to.
Hope this helps.