Uh, Ive run 265's on a 8" wheel, The 245's don't even poke out enough to protect the wheel, a 255 or 265 should fit no problem.
Some tire companies 255's are equal to some companies 245's. Nitto's run terribly small in width. I would think a 265 would fit, maybe hard for the tire guy but well worth it. Most tire companies give a suggested wheel size and some list 8" for 255.
Just looked up several tire mfg's and they list a 255/35 or 255/40 to be acceptable on a a 7.5" rim
2008 Panther Black G8 GT with Sport, Premium, RotoFab CAI, VMS HSRK and Cortex Tuner 93 octane
1969 Tempest Custom-S, Full Tubular suspension, 4 wheel disc brakes
Last edited by tntempest; 07-11-2008 at 12:18 PM.