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The BackRack wide-top hardware kit for 2019+ Silverado and Sierra HD replaces standard railmount hardware to allow a toolbox to mount flush against the BackRack and eliminate the gap between toolbox and rack. It lets installers fit a toolbox without drilling into the truck bed and is sized for standard 21-inch toolboxes, providing a tidy, factory-like integration for HD Silverado and Sierra models.
BackRack 2019+ Silverado Sierra HD Only Tonneau Hardware Kit - Wide Top
