Pickup trucks and durability go together like America and apple pie. And the new GMC CarbonPro carbon fiber composite box for the 2019 Sierra takes the truck’s already-high durability and turns it up several notches to deliver the most durable pickup truck bed in the history of the pickup truck. Besides its primary benefit of extremely high durability, the CarbonPro box also carries several secondary benefits over traditional steel-rolled beds. One of these is the added benefit of not needing to install rear wheelhouse liners.
Wheelhouse liners, otherwise known as wheel well liners, are the (typically flimsy) plastic pieces installed in the wheel well to keep water, dirt, and other debris from infiltrating a vehicle’s underside. On pickup trucks specifically, rear wheelhouse liners keep debris and moisture away from the underside of the box, helping to prevent corrosion and rust on the metal bed.
But thanks to its increased dent resistance compared to aluminum, the CarbonPro box doesn’t require rear wheelhouse liners. And since the box is not made of metal but rather of a stronger and more resistant carbon fiber composite material, it eliminates the need to keep dirt, grime, and moisture away from it.
The GMC CarbonPro carbon fiber composite bed also delivers various other benefits. The entire construction is so strong that one does not need a spray-in bed liner. In addition, the surface of the truck bed features a grained surface and the lightweight material also increases the Sierra’s payload capacity.
The box also features three indentations and two additional tie-downs at the front to help secure the wheels of motorcycles.
The one thing we don’t know about the CarbonPro box at the moment is its price. At first, GMC will offer the box on limited-run models branded as GMC Sierra CarbonPro Edition, which will be available with the 2019 Sierra AT4 1500 and 2019 Sierra Denali 1500. However, availability will be expanded on the 2020 GMC Sierra.