I have a 2018 Cherokee with the ad1 I have seen others on here use a rear wheel centering kit or the trailhawk rear trailing arms. Do I just need to add the rear wheel centering kit? Or do I need to use both the rear wheel centering kit and the trailhawk rear trailing arms to get centered? I don’t want to spend money on both if I don’t need to. I just want to be able to get the rear wheels in alignment as best as I can and up my tires without rubbing.