need ideas for this problem.

so we run 275/60/15 micky street radials on our car.. we had it on the road and the tire was scalped by the wheel well and bent the lip. how to fix the issue we will roll the lip and i was also thinking of adding shims behind the spring brackets to push the axle back some..and yes i will make sure to keep the axle square. dose anyone have any other ideas and do you see anything wrong with my idea?
drives side has 1/2 in the front, passenger side was 3/8 of an inch. rear side had over an inch.

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