I just put the wheels on the car. I haven't really seen a lot of information in one place on what works well, it's usually scattered around a thread, so I'll post all that I have learned here.
Rear: Running a 17x10.5" FR500 wheel in the back with 6.82" backspacing and a 1.5" spacer, and the tire is a Nitto 285/40/17 NT555ZR. The spacer was not necessary but I love the look of a wider stance. If I had gotten the 1" spacer I would have enough clearance for a 305 or 315 tire. Will definitely be running Mickey Thompson ET Slicks at some point on this setup.
Front: The front is a 17x9" FR500 wheel with 5.95" backspacing and a 1.5" spacer, and the tire is a Nitto 245/45/17 NT555ZR. I have enough room in the front to fit a 265 easily.
All in all I'm impressed with the ride quality and handling difference with this setup, and it can take a decently hard launch with minimal traction loss with cold tires on an unprepped surface. It's also a bonus that 1994-2004 Mustang rear wheels are a direct bolt on with no spacer required, and the 17" wheel is a perfect medium between classic small wheel big sidewall and a big wheel low profile modern look. I couldn't have done better for a $475 set of wheels!
Next on the agenda is Brakes, Suspension, and Rear while I have the car decommissioned to put the 460 in it. Also keeping it automatic until I have about $5,000 to drop for a TR6060 or maybe the worlds first TR6070 swap.
Who is running aftermarket brakes on their car and how do they work?
For suspension I was looking into either a 1" drop in the front or just cutting the spring a tiny bit for about a 1/2" drop.
Any recommendations are appreciated! Thanks!