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The tire rubs during normal driving, or does it only rub when going over uneven driveways, etc, that cause the axle to tilt up on one side relative to the body? You can easily gauge the distance from the tire to the lip of the fender using your fingers and see if it's about the same on each side, or is the rubbing tire clearly more inboard than the other. Torque rod bushings would have little affect on the tire rub you describe. The panhard bar locates the axle and determines the lateral location of the axle. I don't see much wear in the panhard rod bushings on 240s, certainly not enough to cause slop or a shifted axle. Accident damage is plausible.
Not sure what you mean about one wheel being different. If you look at the car from the front, camber is the top of the wheel tilted in or out. That is adjustable at the strut mount, so a shop can make changes to camber. A bent control arm usually gives excessive toe out. The way the control arm bends is the reason for this. In the direction that it would have to bend in order to alter camber, it is fairly strong in design. But if you hit a curb directly such that the tire were perpindicular to the curb, the control arm would bend back and you'd be left with a lot of toe-out. In that situation, the control arm is weak by design and meant to bend rather than allowing the chassis mounting points to be damaged. The control arm is shaped like a box, but the bottom side is open. By "boxxing" the control arm, it is made stronger and more rigid by welding a plate over the open side underneath...common for racing applications when using factory control arms.
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