I am interested in buying some welds (15x 3 1/2) for the front of my car, and 15 x 8's for the back. I hear there is some caliper clearence issues i need to deal with when running a skinnie. I have been told that there is no backspacing measurement on a 3 1/2 wheel and i would probably have to run a spacer.....but are the front wheels going to stick outside the fender by doing this? Do i need longer studs? Seems like there has to be a pretty large spacer to clear the caliper. Any info would be helpful, and pics of an SN95 with this setup would be very much appreciated. Thanks