Are 74 Dart fenders year specific?

My cousin just bought a 1974 Dart. He does not like the front end and wants to put an older style hood and grill in it. Are the fenders specific to the 73-76 body style? Or, can he put the hood and grill assembley from a 67-69 dart or 70-76 duster on the car and still have the fenders line up with same?
Thanks ahead of time.