Factory wheels

volunteer said

Demons, Dusters and Dart Sports seem to naturally 'crave' wider tires in rear, due to car's shape and stance. Just keep diameters equal if possible, and that would mean 70-series in front and 60's in rear. Swingers, Valiants and Scamps look better with all four wheels as same size; width and diameter (IMHO) - good also for those of us who like to rotate wheels. Putting 15" or taller wheels (on A-bodies) can lose any semblance to originality mighty quick. (more often than not)

Click to expand...

Dusters/Demons/Dart Sports can actually fit wider tires in the rear, the wheelhouses are actually bigger.

Equal diameters is a personal preference, and honestly most people prefer to have taller tires in the rear. Just look at any of the wheel and tire threads, most run a staggered set up with the rears taller.

"series" depends on the width, it literally means the percentage of the width that the sidewall height is. So throwing out 60 and 70 series without a width attached is misleading, because it may make the tire height a poor choice.

Any diameter wheel can look goofy if the tire size and ride height don't match everything else. You can make 15's look tiny with an elevated ride height and 18's look great if the stance is right.

And none of this is on topic. If the OP has factory wheels, the tire sizes available will be VERY limited if you pay any attention at all to the tire manufacturer's recommended sizes.