Well if you go back and read my post, you'll see that it's not just the increased tire width...the offset of the stock wheel is 55, your new wheels are 40, and they are another inch wider, so the outer edge of the wheel is now a lot further out than the stock setup. Like I said above, you are likely rubbing on the rear bumper in the area in the fender well. Try grinding it back a bit...or with time the tire will do the same. If you are rubbing on the fender itself, you'll need to bend the fender lip upwards and out of the way.