I dont have the GM papers for 48, but the 47 one states all running boards were black. I dont see any place were you could get some other color, but have seen trucks with matching orginal running boards. Puzzling, maybe its some kind RPO thing. The strip is listed, but it dont say anything about one or two, just beltline strip. Also a lot of plumbers trucks used Powell beds on them. Mostly you find them on 3/4 and up, not the 1/2 tons
