Henry---I would put a spot of weld on the track/slide mechanisms and remove the adjuster handles. It would be goofy to adjust the seat part if the back stayed in one place. The only reason I am thinking of this is the fact that the 2 bucket seat bases do fit in the roadster pickup without any width modifications, (and I have them), and from what I gather there are no "junkyard" bench seat bases that would fit. If I build a plywood and webbing and foam seatbase (as I have with other rods), then they are not as comfortable as the factory buckets with proper springs and padding.