Does anyone know if the Seat is the same in a 55 Nomad, Sedan Delivery and a 2 Door Sedan.

I suspect the Nomad and 2 door sedan would have the same front seat. I'll attempt to look it up later today. Sedan Delivery seats are much different.

That helps. I was hoping they were all the same.

The Nomad and 2 door had a bench seat with folding backs....the SD has toe individual seatss.
But a1955 TRUCK eNGINEERING mANUAL FOR MORE S.D.. iNFO.

Good to know. I know a guy who just bought a Nomad with no seat.

I have a back seat for a Nomad. Came out of a parts Nomad. Haven't seen it for a number of years.

Also, although less common, Pontiac seats are the same as Chevrolet for the same body styles.