Converting the 73-76 Dart fenders to fit a 67-69 Dart

I have a 73 Valiant and a 1970 Valiant. The 70 is a parts car and I put the 70 nose on the 73 and thought I would have to use the fenders. The ONLY difference on the 70 fenders is a small tab i needed to fab and weld on upper front fender. I don't know if there is any difference between the Valiant and Dart on these years.