1974 Duster

I believe even the marker lights are the same depending on year. 70-71 dusters had recessed marker lights where as 72 dusters use the the surface mounted marker lights just like 73-76 dusters did.

dart sports also share the same marker lights but they are mounted higher up in a different location. and they also have a swooped back wheel well where as the duster is a more symmetrical arch. dart sports also have an indented body line in the wheel well that the dusters do not have . a dart sport fender would mount up, but would still need the mounting tab i mentioned on top of the other differences i just pointed out.