XRS Cross Bars Bed Rail Kit for Full/Mid Sized Trucks W/Tonneau Cover T Tracks Textured Black 2006-2026 Nissan Frontier 2016-2026 Toyota Tacoma 2017-2026 Ford F-250/F-350 Go RhinoGo Rhino's XRS Cross Bars allow you to mount a rooftop tent on your truck while preserving the utility and capacity of your factory truck bed. The corner uprights elevate and support the 4 CORE cross bars approximately six inches above the factory bed cap, which provides for unobstructed access to the truck bed. Mounted tents and cargo boxes will sit below the roof of the cab, which reduce wind resistance. Each 4 CORE cross bar works with standard ??