Father-Son 1974 Duster Project

You have pics of mine in your 'nubs' thread. Nubs on Cop Wheels
That is a 14, but height and width are same as the 15 I recommended. If you go to a wider tire, that width might get you - rubbin the fender in a turn. Also as someone else said, your ride height affects it too.
I don't know if I have a good 'full frontal' pic :D with both tires in it to really see the width.