71 Duster rear pop out window hardware.

Just one source, they are not inexpensive but it’s what you need. I can’t find where I bought mine but all the repops are the same.
Quarter Window Latch Mopar 1970-1972 A-Body, 1968-1970 B-Body
I think I got mine here at Classic Industries
MB1245 - 1968-72 Mopar Quarter Glass Window Latch; Each