rear eccentric when moved so that the ball joint goes aft, rear of the arm in, increases the positive camber. When I start with the ball joint full forward I have neg. camber as I move it aft, rearward,It just keeps going more and more positive. This is all stock parts ...but the spindle is the taller 1973 and up one. If I can set the caster say 3 degrees positive both sides but have excessive positive camber. then install both bushings offset inboard do you know how many degrees camber the bushings will give approximately? I was thinking if Install them staggered the I wouldn't get as much out of the camber. Might be one of those Things I'll have to try.