i'm a big fan of the rc lifts (had a few and no problems) but looking at their website it shows the 5" and 7.5" lift for your truck the same price. if your going to go with the rc 5" its going to cost the same amount for the 7.5". also a good tip call rc and talk to a salesman, i've did that on both my lifts and they have cut me a deal on both. just my $0.02.....good luck