From "spotters guide" -
.....During the '58 model year, Chevrolet introduced the first Fleetside body style. The bed featured double walls, and the tailgate used chains to hold it in a horizontal position while owners loaded cargo into the truck. By the '59 season, the Fleetside had outshone the Cameo, but then the exciting new El Camino made its debut. And that, as we say, is a whole other story....
