Yeah, that is the biggest thing. Make sure you have everything. When I got mine I had to buy it all in seperate pieces because at the time Pro Comp didn't just sell a kit. Now they have their Stage 1 and Stage 2 kits. Most kits don't come with an SYE or CV Drive Shaft but almost all kits have everything. Things to look for, Adjustable Track Bar, T-Case drop (if you don't plan on getting an SYE right away), Sway bar disconnects (optional but a lot of kits have them now). I think that is the most common pieces that are left out. None of them you absolutely NEED, but they are VERY good to have. Any questions just ask. I think most of us have installed a lift or two here we we kinda know what we're talking about.