What size tires will fit on stock dart 15" wheels?

1970dartcustom said

I need to know for my build (1970 dart) what size tires will fit without rubbing on the front and back (I know the back may be wider, but I need to know the widest for both). The rear springs/rear mounts have been moved in a little to add a little room in the back by the previous owner...
Also, I am probably gonna use Wheel Vintiques Rallyes 15x8 smallbolt that have a backspace of 4.625 offset +3mm in the back and the same wheels up front but 15x7 Rallyes with 4.25 backspace offset +6mm...
Will those fit (even the wheels)? What about tire size on those wheels?
Please help!:banghead:

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Depends on front wheel hubs (disc or drum brakes?). If you're running KH disk brakes, the front tread could be wider. The front track on a BBP A-body is wider with factory disks than with drum brakes.

I converted both the 72 Demon and 73 Mordor to factory BBP DBs and installed 15 inch wheels. The 72 has cop car wheels, 235/60 tires; the 73 got Magnum 500s, 205/60 . Specs on the wheels were the same 15x7 & 4¼ backspace. The 235s are tight with the wheel opening up front and the leaf spring (stock loc.) in the rear. No problem with bumps going straight. Lean it over in a hard turn and the fronts sometimes catch the inside of the fender (not the lip) on a bumpy turn. Think I'll drop to a 225/60 when it comes time to replace the 235s. The 205s are no problem anywhere.

Hope the info is helpful.