Vantech Black Aluminum Clamp-On Cargo Rack System GMC Savana 1996-current 135" WB / Regular Model H2004FD04BVantech Black Aluminum Clamp On Cargo Rack System GMC Savana 1996 current 135" WB Regular Model H2004FD04B The FD configuration allows for the integration of fog lights without compromising cargo space. The F front end extends the system by 19. 5 inches, as well as adds a lower bar to mount accessories to. There is an 8 inch space between the bottom and top rail of the F piece, which allows for a variety of fog lights and lightbars to be mounted. The