I don't think so. That will not fit on my 68 Dart with unmodified fenders. IIC, the 68 fender take the same wheel lip molding as a 72.
I did fit 245/60/15 on 15x6.5 rallyes on my 68 Dart BUT I moved the bottom of the front fender lip out about 1" or so.
I did this by moving the hole on the bottom fender lip for the support bracket forward about 1" or so. Now 67-69 Darts don't have a lower front valence. So when you move the support bracket the whole bottom of the fender out and creates tire clearance.
70-72 Darts have a front valence that will hold the fender back if you try to push the bottom of the fender lip out.
