rear camber change

does anybody know if an adjustable camber set up has been made for the rear of gta's. something similar to the vw golf front strut/hub, and also most modern rear multi link suspension is adjustable, by means of an eccentric bolt.

On my old Atmo, I cut off the original top wishbone L shaped brackets from the chassis, made new ones which bolted on instead, and spaced them out using shims to adjust the camber.

thanks david, had'nt thought of that, must get a wee look.