Are all Duster windshield gaskets the same ?

[gdonovan]

I’m getting a Lawyer/Politician vibe from you, man. I can’t get anything specific.

Nope; After answering car questions about Mopars for the last 45+ years online I try to be precise as possible on the first go so I don't have to deal with foolishness after.

 

[cudamark]

Looks like the part number changed in 1974. Probably a minor change of some sort.