Headlight pots/Bezels..Not fitting?

My 67 Dart has a problem. I dry fitted my Headlight bezels and grill and all was fine. Im trying to instal my pots and lamps to find that they fit to low. I now cant get the bezels in at the bottom. Im puzzled. I know alot of my stuff is mixed with 73 Dart items. Are the pots and lamps the same as a 67 to 73? Need guidance thanks.