Use a level, you can use your phone and a straight edge... You adjust lower trailing arm and the upper one to rotate the hub carrier. this rotation makes the lateral arms level out. You also need to adjust these two arms for the correct wheelbase and position of the tire in the wheel well. Then the lower lateral links adjust toe and the upper adjusts camber. every adjustment can change every setting... you just keep tweaking until you get it where you want it. It took us a couple hrs playing around when the shop was closed. Really helps to have friends with access to equipment.