so, did you get to the bottom of the camber problem?
i seem to have the same problem!:doh:
FIRST jack the axle up so that the tyre is just off the ground,
Get a crow-bar and try levering between tyre and ground.
If there is ANY movement or clonking noises, keep going till you find out what is causing it.
ANY slack in a wheel bearing or swivel pins will immediately cause the appearance of "positive camber".
Bending an axle is not likely to be an event that happens without you noticing it at the time.