Mine doesn't require alterations to fit into a 70'... other than the 70' turn signal sockets won't fit into a sharktooth grill. And the 73's have that little point in the center grill/bumber/upper vallance. Not sure how far you'll have to go w/alterations to make it fit. I think if that's all you have to change/ you're very lucky you didn't have to change the grill supports or anything like that. Sorry that I cannot be more helpful. Chryslers are strange animals. I hope to see a pic after you get it together. Good luck mad dog.