Back Rack Tonneau Cover Headache Rack Adapters will allow your Cab Rack to mount above the level of your tonneau cover frame, enabling you to keep your cover after installing any Back Rack Cab Guard rack! The adapter brackets install on your vehicle's stake pockets, and your Cab Rack bolts directly into them. This means the brackets can only be used with tonneau covers which are not originally set up to use your vehicle's stake pockets. Please note that the brackets do not allow for installation of lights or other accessories, but separate mounting pieces are available if you decide to mount these items elsewhere on your vehicle. The brackets are made from durable steel and are available with a black ceramic powdercoated finish which will resist corrosion, scratches, chips, and discoloration. Their metal construction is backed by a 1-year warranty against failure or corrosion.