The don't alter camber, but give the car toe-in, which makes it much more stable, especially when sliding the car . The standard factory settings are supposed to be parrallel, but with bush deflection / old worn bushes, this goes to toe-out, which makes Cossies feel REALLY unstable and they "tank-slap" if you lift off the throttle. With toe-in, the car is always trying to self centre, so a slide can be controlled progressively with opposite lock .