I'll be installing the stock mod soon, but I also ordered their adjustable lower control arms. The components seem beefy enough to take some abuse. It's not part of the kit, but I have already installed a set of crown front and rear brake lines, Bilstein 5100 shocks for 3.5" lifts, and extended bump stops front and rear(all of which you'll need). A front driveshaft regardless of which you choose might need to be done. I'll run mine until interact he boot, then I'll order myself a JE Reel 1350. I've ridden in quite a few jeeps with Rock Krawler suspension and they've all ridden fine to me. I know a lot of people here run the Evo lifts, and I'm sure they are great too, but I can't realy comment on something I have not used.