17" versus 14" tires

onebadstepside said
This is the 255/45r17..17x8 w/5.5 bs..so tell me why these wheels rub on the bottom of the front fender..and these same wheels clear with no problems on a
72 demon..I have never heard on 71 and 72 front demon fenders being different except the side marker lights..I’ll have to check out my 71 demon parts car and compare to my dads 72 demon

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They clear a ‘72 Dart fender because they’re different than the ‘67-71 Dart fenders.

There’s more information on the wheel opening differences in this thread

Help: 72 Dart Swinger front pass. fender rubbing

And regardless, at 26.1” tall and as wide as a 255 those tires are pushing the limit for clearance of even the most generous A-bodies.