On my (non computerized) dist top shaft the circumference is 2.004" and the rotor slot width (straight line distance but still pretty close) is .238" so you have alot of room to either cut a new (reclocked) rotor slot or widen/jb weld the existing one to reclock it slightly as needed IF this will solve the problem. The shaft is thick/sturdy and the rotor is light so I dont there'd be a strength issue