BackRack 2007+ Chevy/GMC Silverado Sierra HD Only Low Profile 21in Drill Hardware Kit

Our new LOW PROFILE DRILL Hardware Kit is available for select late model fullsize trucks. These require you to drill two holes through the top of the bed rail for installation. If you must have the Toolbox sitting at bed rail height this is the option. Four carriage head bolts secure the assembly allowing you to place the Toolbox at a low profile using existing clamps that came with the Toolbox. Drill if you must. Not compatible with TONNEAU COVER ADAPTER Brackets. Low Profile Hardware Kit; 21 in. Mount; Drill; 2020-2021 Chevrolet Silverado 2500 HD, 2020-2021 Chevrolet Silverado 2500 HD, 2020-2021 Chevrolet Silverado 3500 HD, 2020-2021 Chevrolet Silverado 3500 HD, 2020-2021 GMC Sierra 2500 HD, 2020-2021 GMC Sierra 3500 HD Fitment: 2020 Chevrolet Silverado 2500 HD Custom 2020 Chevrolet Silverado 2500 HD High Country 2020 Chevrolet Silverado 2500 HD LT 2020 Chevrolet Silverado 2500 HD LTZ 2020 Chevrolet Silverado 2500 HD WT 2020 Chevrolet Silverado 3500 HD High Country 2020 Chevrolet Silverado 3500 HD LT 2020 Chevrolet Silverado 3500 HD LTZ 2020 Chevrolet Silverado 3500 HD WT 2020 GMC Sierra 2500 HD Base 2020 GMC Sierra 2500 HD Denali 2020 GMC Sierra 2500 HD SLE 2020 GMC Sierra 2500 HD SLT 2020 GMC Sierra 3500 HD Base 2020 GMC Sierra 3500 HD Denali 2020 GMC Sierra 3500 HD SLE 2020 GMC Sierra 3500 HD SLT 2021 Chevrolet Silverado 2500 HD Custom 2021 Chevrolet Silverado 2500 HD High Country 2021 Chevrolet Silverado 2500 HD LT 2021 Chevrolet Silverado 2500 HD LTZ 2021 Chevrolet Silverado 2500 HD WT 2021 Chevrolet Silverado 3500 HD High Country 2021 Chevrolet Silverado 3500 HD LT 2021 Chevrolet Silverado 3500 HD LTZ 2021 Chevrolet Silverado 3500 HD WT 2021 GMC Sierra 2500 HD Base 2021 GMC Sierra 2500 HD Denali 2021 GMC Sierra 2500 HD SLE 2021 GMC Sierra 2500 HD SLT 2021 GMC Sierra 3500 HD Base 2021 GMC Sierra 3500 HD Denali 2021 GMC Sierra 3500 HD SLE 2021 GMC Sierra 3500 HD SLT