Alignment cam kits.....look like this:
They are normally packaged as pairs, so you'll need two pairs. Those pictured are exactly what I have for my lifted truck, and what my lil brother has on his lowered truck. These ones, come with two bolts, 4 cam washers, 4 regualr washers, 2 lock washers, and 2 nuts. Tighten them good, and your good to go to the alignment shop. I'm a big user of air impact.