I just picked up a set of Sparco reclinable NON bucket seats and have the sliders that go with it, I'm just missing the base to connect it to the floor. Looking for Sparco Seat base/brackets, the 500 series, I need one for driver side and one for passenger side. The exact part number is 5002076F driver side, and passenger side is 5002077F.

This is what I'm talking about http://www.sparcousa.com/pseats_acc.asp?id=678








I would also consider the universal seat mount because it is height adjustable, and it looks like this