I used a 3in body lift for a ranger as well as a set of shackles and cranking the torsion bars up 2", i went with a 15x10 wheel so i had to do a bit of triming, if you use an 8in wide wheel you wont have to trim as much, i did it my self but i work at High Tech in chantilly so i have expirence, also the front and rear bumper brackets had to be custom made, is a 10 - 12 hour job easily, the torsion bars are plenty strong and they are made adjustable for a reason. you do not need torsion keys. if you have any questions just let me know.