The bed side trim moldings were used on the second year Fleetside Chevrolet deluxe pickups for just one year, 1959. General Motors waited one year after the Fleetside introduction to give their dealers time to sell all their 1958 Cameos (The end of this model) so there was not two deluxe
designs available at one time.
The bed moldings added much to the 1959 deluxe pickup. In addition GM used many trim features that were once on the 1955 and 1958 Cameo cabs. These side moldings came on both 6 and 8 foot bed lengths. Thus, this bed trim was the main new expense General Motors had in creating a 1959 deluxe Fleetside. (And these new Fleetside beds could carry more merchandise than a Cameo!)