BACKRACK Tonneau Hardware Kit; Low Profile; 07-19 Silverado/Sierra Old Body Style Model 40120 170" Extended Wheelbase Four carriage head bolts secure

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

To add even more strength to the crossover truck tool box

The high-flow conveyor is 12 in

5" 13" X 8" Model 9864-3-01

BACKRACK Tonneau Hardware Kit; Low Profile; 07-19 Silverado/Sierra Old Body Style Model 40120 170" Extended Wheelbase Four carriage head bolts secureBACKRACK Tonneau Hardware Kit; Low Profile; 07 19 Silverado Sierra Old Body Style Model 40120 Replaces Standard Railmount Hardware. Allows Toolbox to be installed flush against BackRack(TM). Eliminates gap between Toolbox and Backrack. Allows Toolbox to be installed without drilling into truck bed. Standard 21 inches. Optional 31 inches available. Tonneau Cover Hardware Kit Fitment Information 2014 2018 Chevrolet Silverado 1500, 2010 2013 Chevrolet