I have 17x8 - 2001 Bullitt rims with NITTO NT555 235x45x17 tires mounted. The back tires have a 10mm spacer, and the fronts currently have a 1/2" adapter. Since I did the Shelby 1" drop I am going to take off the 1/2" adapters and see if the rims clear the upper ball joint. The rims I believe have a 4.5" back spacing. The backs tires are pretty close to touching the fender lip, and I've done a bit of surgery to make sure it doesn't hit them, but so far I haven't rolled them. I also put 16 adjustment rear shocks on so that helps with the rebound.
US NAVY VET - 65 Custom Fastback GT-A-code. FiTech EFI w/Tanks Inc. w/Aero 340 LPH pump, TCP Power R&P; Full front coil over conversion w/1" Shelby drop; TMI Sport R custom interior; T5 TKO, Speed Hut custom speedo; Autometer Phantom gauges; SSBC Force 10 -13" disc brakes w/10.5" rear disc brakes; 24" Griffin Radiator w/twin 11" 2800 CFM fans; Classic Auto Air AC; Truck-Lite 7" LED headlights; Mustang Project Shelby LED sequential taillights. 2001 Bullitt rims w/Nitto NT555 235x45x17 tires.