My understanding--and correct me if I'm wrong--is that the 3ph lift capacity is as much related to the ability to correctly ballast the tractor, as it is to the actual lifting capability of the arms themselves. That's why, for example, my owner's manual lists a different FEL capacity depending on the amount of ballast that I have on the rear. I have come close to my tractor's rear lift capability before and, if I don't have my loader on, the front end gets mighty light. It seems like one would have the nose of the average tractor up in the air before one reached a weight that would damage one's 3ph. No?