this has come up a couple of times on the galaxie board. I believe what I've read is approx 295 series on the rear with a 4.5" backspace. The front will have to be considerably narrower, around a 215/225 series or so, again with a similar backspace. You best bet would be to confirm this via measuring. Go to
www.etwheels.com and there is a section on making the proper measurements.
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