It looks like solid body color "combinations" (one body color and complementary wheel color) was an RPO (234) for solid exterior/interior color 195455st trucks - it provided the complementary color wheels (rather than the standard black with any/all exterior colors). All the dealer had to do was order that RPO for the exterior color - and the complementary wheel-color was a no cost option. My standard (regular production) body-color Suburban had black wheels - Juniper Green body color.

That feature of RPO 234 might/might-not have been available in early 1954 (those features are not listed in Truck Date Book), but it was certainly available in Truck Data Books by late 1954 (October). And, the Tech Specs shown above is dated May 1954.

Thanks, Oilrag