Have a dually? Looking for a bed cover? Gaylord's Truck Bed Lids now carries its TL Series bed cover for 2008-and-up GMC Sierra duallys. The TL requires no drilling with easy clamp-on installation. The fiberglass cover can be painted to factory colors and uses double neoprene weather seals to help keep cargo dry. E-Z Auto Open arms automatically open the cover with a single key or optional keyless remote. The bed cover also includes a carpeted headliner, nylon pull strap, and an interior release latch. Its aerodynamic design can also help increase your truck's fuel economy by up to 11 percent. Pricing: $1600.