Or, I could use the fronts, with the 3.5" bs in the rear of the dart to shove the tire outboard and get the same size tire and wheel with a 4.5" bs for the front. This would give me, I think, a modern look and solve what I think was one of the biggest design flaws of cars of this era, the rear tire tucked too far under the car. Doing this gives me the look I'm after, while not spending the money on a narrowed rear end.