Depends on whether you are going with what fits properly and what fits.
I like that
I run 255 60 15 currently on what appears to be an 8" rim. I run these front and back and even with the car lowered, they fit nicely and don't rub (wheel arch lip measures 26" from the ground). If anything, the rear wheels are too tucked in as it looks broader on the front and narrower in the back.
What i've done is got some 12" wide, 27" tall 15's; Goodyear Eagle NASCAR tyres to use at track days. They are the same height as the 255 60 15's (27") and it's only the section width (12") that differs (works out to 305). In other words it's a 305 50 15. From what i've read, it will fit in the rear arches as people have gone up to 315 width. So it's really a case of figuring out rim width and backspacing. I have a pair of slot mags which are 8.5" wide but the backspacing is 3.75" so i have a feeling these may stick out too far and have unused space on the inside. NASCAR rims are 9.5" wide so running an 8.5" rim would be quite close. Interestingly the tread width is 11" and the sidewall width is what brings it out to 12".
Ideally i would run a pair of slotmags, 9" - 9.5" with 5" - 5.5" backspacing. Can't seem to find any. If anyone has any...
I looked at Cragar D Windows but they seemed to have disappeared from everywhere. They are a steel wheel and come in many sizes, but Northants tyres are the only place that seem to have them and they only have an 8" with 4" or 3.75" backspace.
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