Chevelle Rear Seat Frames

[Zombie666]

I'm trying to find new rear seat frames for my 68 Chevelle 2-door coupe. This is impossible. Lots of 70-72 options so the big question is, are the rear seat frames the same for model years 68-72 and what's the differences? The floor pans, wheel houses and rear fire wall are all the same so it would seem that seat frames should also be the same. Heeeeeelp

thanks in advance,
Perry