Cargo that shifts doesnâ€™t stand a chance when the rear window is armed with Hauler Racksâ€™ Headknocker Headache Rack. Building materials, long ladders, and other cargo can be hauled without damage to your trucks rear window. This huge rack is designed for optimal structure integrity and creates maximum protection. The headache rack adjusts from 63 inch to 67 inch bed widths in full size trucks. 53â€ to 57â€ adjustments can be made on mid-size trucks. The Hauler Rack Headknocker Headache Rack bolts to the bed rails. Rust and corrosion are averted by the manufactured anodized aluminum. That adds a dazzling touch to the truck. A light bar would be the perfect accessory to provide the ultimate in function and style.