Chevrolet’s Forward Control chassis continued to appear under a variety of delivery bodies. Only the Step-Vans were available factory direct, and were all rated as 3/4-ton units P20, or 1-ton with optional rear axle P30.
They came as the Model 3445 on 104-inch wheelbase; the Model 3545 on a 125-inch wheelbase, and as a Model 3745 on a 137-inch wheelbase. GVW ratings up to 10,000 pounds could be ordered. The Step-Vans were available only with 6-cylinder engines, either the 235.5 cubic inch Thriftmaster or the 260 cubic inch Jobmaster. Hydra-Matic automatic transmission was available for all models.
Among other builders supplying special bodies for Chevrolet Forward Control units were Airvan, Boyertown, DeKalb, Herman, Universal, Dayton-Brown, Olson, Montpelier, and General. Many of these builders deleted the Chevrolet name from the chassis, and installed its own signatures.
In 1960, the Step-Van received a new grille design of slightly more pointed bars, and could be ordered with tunneled signal lights. The trucks were offered with 3 sizes of body (8-, 10- or 12-foot) and 3 sizes of interior body height (68, 72 or 76 inches). The engine is 250 Six with 150 hp or 292 Six with 170 hp.