How to set caster?

When you rotate the cams, it moves the legs of upper control arm in and out.

When you only move front control arm leg "out" it actually pivots the whole control arm on the rear leg. That moves the ball joint to rearward.

When you only move rear control arm leg "in" it actually pivots the whole control arm on the front leg. That moves the ball joint to rearward.

If you max out the front cam adjuster all the way "out" and the rear all the way "in", you get the maximum caster setting for that wheel. Problem is, you need both sides caster to be pretty close (0.5 deg difference max). AND you have to set the camber setting. So... you end up going back and forth with caster then caster setting because they will effect each other. You'll do some juggling around...

First set the front adjuster max "out" and rear cam adjuster max "in"...Then check caster measurement both sides. Next, go to the side of the car with the most positive caster measurement reading and move that rear adjuster "out" so that wheel has the same caster as the other. Then, check and set camber by moving the front and rear adjuster "in" or "out" both the same amount. Then... Check caster and adjust if needed... Then camber and adjust as needed... back and forth.