Just a note: if you don't want to spend the bucks for tires/wheels, you can just do the tires. I ordered a set of 235/55 Kumhos from my local tire store before I even picked up my car. On the day I took delivery, I drove it to the tire store and traded in the stockers for a $50 credit each. So the new tires only cost me $20 apiece (plus installation). My wheels are stock but the tires are the same width as on a GT. As for gears/T-loc: is it possible to pick up the entire rear axle assembly from a wrecked GT? Must be a few of them in junkyards by now.