Posting this before I do research to see if I can get a quick answer. Ive been on the hunt for a 4.0 with decent mileage to go in my 97' cherokee. Found a 2000 4.0 for 600 bucks with less than 100k but the add says 2000 coil pac motor... it should drop and work just fine assuming it came out of a cherokee not a grand. Im assuming i know what happens when you assume but ive never heard it called a coil pac motor.