i don't really have any plans of changing seats, but if i were to (yep, i've thought about it) it would have to be late model corvette seats. the non-sport version (i believe) has the center divided into horizontal sections similar to the seats on the 73-4 B-bodies (minus the buttons), so take the buttons off of the rear seat upholstery and i think it may be pretty close....or just have a shop make some out of the same material as the front and make it perfect