Adrian Steel Window Guards, Models 21 and 21S, for use with Load Runner pickup truck racks.
Model 21 (Black) and 21W (White): Fits all Chevy/GMC/Ford Regular Duty pickups
Model 21S (Black) and 21SW (White): Fits Ford Super Duty only. Rugged 1.25" x 1.25" 13-gauge tube frame with expanded metal screening. Offers maximum visibility through the cab window and superior strength due to the welded, no drill design.