The one I currently am looking to swap in is from a 81 240, I believe it is a 3.0, problem I am really having is trying to get the injection from the newer 300 series Diesel to work on this mill. Like I said, still a long way away from the swap. I got 1 tons and a 231/300 doubler going in next winter with a stretch to 106" wheel base. the motor swap will be stage two of this build.