ThanksAny of the Dusters and Dart Sports with a fold down back seat should have those parts for you. Check some of the parts car listings here on FABO.
There's also a plastic cover that hides that piece once it's installed. Just finished installing them on my 73 Sport.
Do you know where to look?
but don't really know what to write when I search.
Post a wanted ad in the Cars and Mopar Parts Wanted
Locking mechanisms for fold down rear seat in year and model of your car. Make sure you list all of what you need. I would want the lock mechanisms, the bolts and the covers.
Are the pieces on the seat itself there?