I bought axis milanos for my car 8 front 9.5 rear and I have the outerwall of my tires taking an amount of damage and I was told this is due to negative or positve camber...First off i thought just changing the rims needed no other mods but I guess I was wrong. How do I fix this?

You need an alignment. You have either have too much positive camber or too much toe in. I would assume the latter too much toe, possibly the combination of both.

The G has a good amount of negative camber stock so if you are having problems with the outsides I would lean toward toe problems. Go get an alingment and check your tire pressure. That should fix it.

What offsets did you get? Your problem may be from fender rubbing.