Going with a wider rim, your made for 7 inch wide tires will have to go. You'll need new tires, new rims, and your rubbing will be worse, I mean it's wider....
Second to cure your rubbing, just get a small lift. Check out 2wd suspension section for ideas. You can get lift spindles, a whole kit, or possibly just some coil spacers. I believe the spindles won't mess with your stock ride.