14" wheels for disc conversion okay?

The factory brakes (10.87" rotor) will work with 14s, but tire selection is getting very limited with 14s and the overall diameter can be the same. My GTS has 215-70-14s and they are the same height (or a little taller) than the 215-60-15s on my son's Dart (he did have 235-60-15s on the rear).