Bench seat for 67 barracuda

67 thru 69 should be exactly the same, except some may have headrests.. Bucket seat brackets are completely different and mount in a different location. You definitely need bench seat brackets and tracks.

I don't see why later benches wouldn't work (A body thru 76) -- obviously you need a bench out of a 2-door, not a 4-door (if you want to use the back seat). I would be dubious about the earlier A-bodies -- the floor may have been different.

I only recently found a bench seat for my 67 Barracuda, after several years of looking. They are tough to get hold of because nobody wants to ship them, and Barracuda benches are particularly scarce. If you are willing to consider other years and models it will be a lot easier.