seat belt needed

Do these look right? I'm pretty sureI still have these and think they may be from a '74 or '75 Dart Sport because I've had a couple of parts cars over the years. But my biggest concern if the one retractor - the end with the shiney black box-like housing. I've seen belts with a straight mounting tab and these with a 90* mounting tab and not sure what the application difference is. (Only other bad thing is that I have a whole set and would prefer to sell it that way.)

The part that goes on the side panel under the window looks to be a lot different. I'm guessing the sport must be different than the swinger.

Thanks for responding though,

Stan