I got 2 thick and 4 thin shims in my kit for the rear camberlink...
I used the 2 spare shims for the arms.... I had to sand them a little to get a perfect fit. Then I wanted to experiment with the camberlink.... lucky for me my LHS had split a kit for parts, I got the packet of shims from it for 5 bucks.... It also had 2 thick and 4 thin.