Ran 245-60-15's mounted on 10 holes on the rear of my 87 for a couple of years without touching anything (Quads or fender lips) and nothing rubbed - could have probably gotten away with 255's. Never ran any thing larger than the stock 2-25's on the front though so I can't help you there.
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1965 K code coupe - numbers matching - restoration ongoing. 1987 LX notch, stock heads and intake, 3.55's and typical bolt on's 13.89@100.25
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