I mentioned it a while ago, but it's worth repeating. There is a TSB on the rear suspension on the SVTF to correct exessive wear on the inner shoulders of the rear tires. The wear is unusual; not the typical wear pattern from a high negative camber. It's barely on the tread itself, mosty off onto the side of the tire, about 1.5" wide. Ford replaced my tires and I'm now waiting for new rear control arms, as the original ones could not be brought to spec. Just something watch out for. By the way, moving the tires to the front seems just makes the worn area wear even faster!!