I currently own a 07.5 auto and just bought a complete donor 07.5 that is a mating reg cab 4wd so I should have everything for a complete swap, I assume I can just reflash my ecm with a manual efilive tune but what about a harness? My donor had a engine bay fire and I have not got it yet but I assume the harness is different for a neutral safety switch etc.. which is may be damaged. I want my exhaust brake to work and obviously start. Just trying to get issues worked out before I begin the swap. Pics are of donor