2007-2019 Silverado Backrack Tonneau Hardware Kit; Low Profile; Headache Rack Hardware (40120) auto-exhaust thicker design and are constructed

thicker design and are constructed from high-silicon ductile iron to combat warping

ensuring a reliable dry-seal environment

2 inches without changing backspacing

front sway bar brackets

2007-2019 Silverado Backrack Tonneau Hardware Kit; Low Profile; Headache Rack Hardware (40120) auto-exhaust thicker design and are constructedReplaces 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. Material: Steel Weight: 17. 9 lbs Dimensions: 15. 000" L 6. 000" W 8. 000" H UPC: 00834136002733 Replaces Standard Railmount Hardware. Allows Toolbox to be installed flush against BackRack(TM).