Help with Bucket Seat Assembly

I don't have the bump stops so I will have to get those.

1970 - early 1971 style - Mopar Seat Hardware and Components 70-72 E & B-body cars. Seat Stop Bumpers with studs. - Dante’s | Mopar Parts Catalog |Classic Muscle Car Parts

But again, if you have the boxed style latches, those frames came with a different type, so check what you have.