Mine is an aftermarket unit that works very well.... It just snaps in place of the drawbar, and the original "Bail" is used to control "Swing"... It came from "Tri-Green", London, Ohio. Rt. 42, just North of I-70. About $200.oo Phone # 614-879-7731 614-879-7732
They have an awsume amount of equipment for sale.