Flip it out with the tailgate open to gain up to 2-feet of enclosed cargo area. Flip it inside and close the tailgate to keep tools and smaller cargo contained in the truck bed. Classic U-shape design provides maximum cargo capacity. BedXtender HD? Max 2019-2021 Chevrolet Silverado 1500 Fleetside; 2019-2021 Chevrolet Silverado 1500 Fleetside; 2020-2021 Chevrolet Silverado 2500 HD Fleetside; 2020-2021 Chevrolet Silverado 2500 HD Fleetside; 2020-2021 Chevrolet Silverado 3500 HD Fleetside; 2020-2021 Chevrolet Silverado 3500 HD Fleetside; 2019-2021 GMC Sierra 1500 Fleetside Without MultiPro Tailgate; 2019-2021 GMC Sierra 1500 Fleetside Without MultiPro Tailgate; 2020-2021 GMC Sierra 2500 HD Fleetside Without MultiPro Tailgate; 2020-2021 GMC Sierra 3500 HD Fleetside Without MultiPro Tailgate
