I ordered 1 of those, my camber is 3/4* shy on the right side. I don't know the exact need for your truck but for me, I think I just would need 1 and would'nt think it would matter which side. Top or bottom is a good question, my guess is which ever one is worn the most or what the directions call for, pretty indicisive are'nt I. I'm sure someone will pipe up if I'm wrong. Paul
I have allways drifted right, hence AKDrifter, the lady says I drift in anything I drive. I've learned to button my lip over time.