72 Dart Swinger Wheels

There is not enough off-set in your Cragers for the 235's, thats why your rubbing.

If you got a set of factory Rallyes, they would have the correct off-set for your 235's.

Here is a Dart with factory 15x7 steelies and 235/60-15's all around.
Theres plenty of room in the back, could even go 245.

You keep mentioning 14's and 15's.
Is your car big or small bolt pattern ?