I'm removing the rear seat of my 1979 camaro. I removed the two seats in the back. The seat back is still in place though. I unscrewed the two screws at the bottom of the seat back that hold it in place. It seems like something is holding it in place still though. I'm not sure if there is something else I need to disconnect it and haven't tried forcing it further because I don't want to break anything. Do I just need to push/lift it out?