I'm no rim expert, but I'd venture to say the one with the deeper backspacing would go in the rear. It'll have a deeper face to accomodate for the fact that it is wider so as not to rub on the inside near the shock. But that is just a guess. Anyone feel free to step in and correct me if I'm wrong.
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'90 GT Under construction
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04 F-150 STX 4.2L 5 spd
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