A body structure for a customized van is enhanced by providing a roof support element which is light in weight, strong, and easily shaped to conform to curved roof lines. The body structure comprises a rafter having upper and lower extruded rails and a plurality of gussets connected between the rails to join the rails in a single member. The rails are T-shaped in cross section with the upright of the T providing a point for connection of the gussets.
A rail mounting system for mounting accessory items to truck bed sidewall includes a rail having a horizontal portion and a vertical portion adapted to respectively engage horizontal and vertical sidewalls of a truck bed. The rail further includes an angled extension extending nonorthogonally from the vertical portion and defining at least one opening therethrough. The rail further includes a bearing surface extending from the angled extension at a substantially orthogonal angle. A clamp is provided to hold the rail in position and includes on one end a clamping surface and on the other end a bearing surface engageable with the rail bearing surface. A fastener passes through the opening in the rail and attaches to the clamp. Upon tightening the fastener, the clamp slides along the rail bearing surface towards the angled extension. The nonorthogonal angle of the angled extension allows the clamp to exert either a vertical force, a horizontal force, or both on the truck bed sidewall.
