Like I did- Firestone Airbags. Mine give me anywhere from a 1 inch lift at 5psi up to a 4 inch lift at 100psi. You can also use blocks in the rear too. I actually bought a set of rear blocks and U-bolts for my truck (I think 3 inch) off this website, but installed the airbags instead. The blocks are still in the mail, if you want them, I can resell them to you!