I always removed the seat pan from the receiving car's seats (IE your civic), then put it in the donor seats (integra) and bolted it all in. It's a honda, so if you take enough stuff apart, eventually you will come across something that's the same lol. The seat pan is the metal dish looking thingie at the bottom of the seat itself. Usually there's little O-ring things holding the seat cushion and fabric to it, and it also connects to the hinge for the seat back. If you're near Athens I can help you sometime next week.