Dont waste money on air shocks get air bags instead. also get the compressor to go with it. Are you pulling a trailer or camper that slides into the bed? You didn't give to much information on your truck. camper package came with a rear sway bar. If not you can get one from Ford but they don't sell it in a kit. So stupid. So you would probably have better luck going after market. You will enjoy the power the truck has so leaving it stock would elevate any problems from aftermarket things like tuns CAI's and things like that. Not sure why 400 HP and 800# ' torque isnt' enough. I think they have a speed limit of 100 mph LOL.