Right now I have 4 Firestone Firehawk P205/60R15 90H

Sometimes when there are a lot of load in the back and I go over bumps it scratches violently against the fender. I hear it is from the back so what tire should I get? I know it has to be thinner.
Question is what because it is really hazardous to drive like this on the road. The rims are 15" I think .. American Racing brand. They do look extra wide.


Thanks again for such -=)


96 Contour GL ATX