I was just reading about the 4wd.com 2" lift, says it comes with springs, shocks, u-bolts, tcase drop hardwre, and brk line brackets. There is a store here locally, so I might do those instead of the RC 2.5" Although I hear RC has really good customer service. The 4wd.com is around $600. No other mod's should be necessary , for 2" and31's. I am hoping.