need help purchasing street radials for my 74 dart sport

72bluNblu said

What rear axle do you have? Not all A-body rear axles are the same width, they differ by model. 7.25/8.25” BBP rears are narrower than A-body 8 3/4’s with BBP axles. I assume you have the 5x4.5”, BBP.

275’s will fit most Dusters/Demons and Dart Sports with the proper backspace.

In the front it will be close to the fender with 215’s. On a 15x7” a 4.25” backspace is better up front. Again, that’s assuming you have the factory BBP disks.

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I ended up purchasing the 15x8 with 4.5 backspace for rear and 15x7 with 4 backspacing for front, I figured that it’ll be a safe combo with room for error and can easily be solved with some spacers if needed. I think tonight I’m gonna order the 255/60/15 for the rear and the 215/60/15 for the front. I’m not making Over 450 wheel so I don’t think that a 255 will feel much different from a 275 and I think it’ll look just as good. As I said earlier If there’s still too much tuck in the rear I’ll just buy a couple spacers and call it a day:)