So your duster is a 70 or71 right. And you had to put a 73 dart front steering system in it is that right. Did you put the whole front 73 up k frame in it or did it have the 73 up front k frame in it when you got it. If so I think that is the problem and difference in the center link. If I remember right the 68-72 center link is different from the 73 up centerlink someone correct me if im wrong but that is why they look different. Justin