[pontiacphil]

I'm still shopping for tires & wheels for my 67' GTO. I like the looks of the new American Racing Torq-Thrust Originals (TTO, 309 series) & the prices at Summit & Jegs are reasonable. The 15x7's are around $170 each. What concerns me is that this particular wheel has a 3.75" backspace where the 15x7 Factory Rally ll wheel has a 4.25" backspace. Don't know why American Racing uses this smaller backspace as their "standard" size. Will this half-inch smaller backspacing make a big difference? I would like to run a 235x60x15 all the way around but could go a bit smaller (225x60x15) if that would prevent any rubbing/interference/scrapping problems. I just want to find a proper fit that won't create problems. Any info. or advice any of you can provide will be appreciated.