These torsion keys make my rig look like it should have when it rolled off the showroom floor. I am not a mechanic myself but I had my mechanic install these so it would lift the front end 3" and I bought the blocks for the back to pick it up 2". I liked my rig before, but now I love it. Looks perfect. I will say, it does make the ride noticeably stiffer but I don't care so much about that as I do about it looking right.