So I bought my 09 6.6L Duramax with a 10"lift on 35s but because the guy who had it before me had a lot of weight in the box for work so it was would have been level before he took it all out. It's about a 3-4" difference. So more like 8" in the front and 11-12 in the back. Do I need to crank the torsion bars or what are my options?