Thanks for the links and part numbers.
I've been searching, found a few 1978 lenses but are styled different.
Found a 1979 assembly, but at $140 that is very close to what I gave for the whole car 9 years ago.
It is NOS though, so if it's still available an a few weeks I will probably buy it.
I am looking for the RH (passengers side) tail light for a 1979 Dodge Diplomat 2 door.
They have a silver vertical rectangle in the center.
Please PM me here, or email hotrodbill@yahoo.com