Neighbor has a John Deere 6400 tractor and asked me if I thought it would pull a John Deere 750 no till drill (15 foot wide and no dolly up front). He wants to drill his own soybeans and cover crops. The JD 6400 is his largest tractor. He knows he might have to use a drawbar support of some kind. Will the John Deere 6400 pull the 15 foot drill???? I told him it might if the conditions were good, but that there was very little room for tough going like wet or tough soil. What do you guys think???? If you don't think it will work would a smaller size John Deere 750 be better???? If so, what size. Thanks. I will pass the information on to my neighbor.