I am new here. Looking for any advice from people who have done a 5.9 swap in to their TJ. I have a 1997 TJ with a 2.5, automatic transmission. I know I will basically have to gut the whole lower half of my Jeep. Will I be able to use my factory harness when it comes time since I have the 4cyl? Has anyone on here done this with a 4cyl before? Just looking for some advice before I start ripping in to it. Going to rebuild the 5.9 this winter and then hopefully start ripping in to my old girl this spring. I have had this Jeep since I was 16, so this build is special. I want to do it right.