truckrodder,
Any chance you can post photos? Anyone else with a '54 60/40 (non-Suburban) seat, any chance you can post photos?
A 60/40 seat seems to be a "rare" '54 Chevrolet Truck option. Does anyone know the RPO number?
The "Ride Control" (Unison Seat) is RPO 264 and it appears to be a single person seat. It was supposedly available in all cabs (but I doubt that two Ride Control seats could fit in a Suburban cab)
The "Auxiliary Seat" is RPO option 263 and it appears to be a 1 person seat (and it was only available on the Panel Truck and maybe on the Canopy Express).
The standard/only Suburban front seat is a 60/40 seat (more like a 70/30 seat). It only works in the Suburban cab - the floorboard under the Suburban seats is distinctly different from other cabs (including Canopy & Panel).
It is possible that a Suburban right-passenger front seat ("jump seat") could be adapted to work in other cabs (the other Suburban "60" seat could easily be adapted to fit into other cabs).
Greg_H knows about Ride Control seats - did they only come in pairs?
Tim