So I have a good running 4.0L motor from a 98 XJ. I have an opportunity to purchase a 2000 WJ with the 4.0L that overheated and needs a new motor. I assume the 2000 is going to be distributorless (I am looking at it this weekend). what needs to be done to accomplish this feat? Can it be accomplished electronically or is there a big difference in the vehicles computers?