You've got a good point on the camber, but I find that unlikely on a solid axle. The camber would have to go to the negative side (top of the wheels out et the top) to do this. That would indicate a bent axle. An alignment shop that does semi-trucks may be able to straiten out a bent axle. Could also be caster which is can be adjusted with shims. Check your tie rods and steering box first and then have the alignment checked.