Ridge_racer: the 4L or whatever it may be should be facing the bumper or the fromt of the car.
If i could see the car im sure i could fix theRF bind right away. Are you sure its the camber link?. if you are, the balls inside the plastic links are bound up and you may have to squeez them with a pliars. but it sound like it may be something more. When i build a car i do it by steps, first i put the arms on the car(only the arms) if that is free then i put the caster block on the arm, if that is free then i hook up the camber link. so in the end their is nothing that could be bound up, and if their is i always know exactly what is doing it. The only other thing that it could be is a bound up dog bone inside the axle. It is very rare for these things to happen with an Xray, so make sure that it is assymbled properly before modifing anything to make it free.
Thanks paul