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For a '77 Trans Am (I used to own one), you need to be looking at wheels with 4-4.25" of backspacing. Unless you want to jack it way up for clearance, the max rim width that will work is 8-8.5".
For a '77 Trans Am (I used to own one), you need to be looking at wheels with 4-4.25" of backspacing. Unless you want to jack it way up for clearance, the max rim width that will work is 8-8.5".