BackRack Toolbox Brackets 31in Pair 91021-31

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. Toolbox Bracket; 31 in.; Used To Mount Over-The-Rail Style Toolboxes; Fits PN[30221]; 2017-2020 Ford F-250 Super Duty, 2017-2020 Ford F-350 Super Duty Fitment: 2017 Ford F-250 Super Duty King Ranch 2017 Ford F-250 Super Duty Lariat 2017 Ford F-250 Super Duty Platinum 2017 Ford F-250 Super Duty XL 2017 Ford F-250 Super Duty XLT 2017 Ford F-350 Super Duty King Ranch 2017 Ford F-350 Super Duty Lariat 2017 Ford F-350 Super Duty Platinum 2017 Ford F-350 Super Duty XL 2017 Ford F-350 Super Duty XLT 2018 Ford F-250 Super Duty King Ranch 2018 Ford F-250 Super Duty Lariat 2018 Ford F-250 Super Duty Limited 2018 Ford F-250 Super Duty Platinum 2018 Ford F-250 Super Duty XL 2018 Ford F-250 Super Duty XLT 2018 Ford F-350 Super Duty King Ranch 2018 Ford F-350 Super Duty Lariat 2018 Ford F-350 Super Duty Limited 2018 Ford F-350 Super Duty Platinum 2018 Ford F-350 Super Duty XL 2018 Ford F-350 Super Duty XLT 2019 Ford F-250 Super Duty King Ranch 2019 Ford F-250 Super Duty Lariat 2019 Ford F-250 Super Duty Limited 2019 Ford F-250 Super Duty Platinum 2019 Ford F-250 Super Duty XL 2019 Ford F-250 Super Duty XLT 2019 Ford F-350 Super Duty King Ranch 2019 Ford F-350 Super Duty Lariat 2019 Ford F-350 Super Duty Limited 2019 Ford F-350 Super Duty Platinum 2019 Ford F-350 Super Duty XL 2019 Ford F-350 Super Duty XLT 2020 Ford F-250 Super Duty King Ranch 2020 Ford F-250 Super Duty Lariat 2020 Ford F-250 Super Duty Limited 2020 Ford F-250 Super Duty Platinum 2020 Ford F-250 Super Duty XL 2020 Ford F-250 Super Duty XLT 2020 Ford F-350 Super Duty King Ranch 2020 Ford F-350 Super Duty Lariat 2020 Ford F-350 Super Duty Limited 2020 Ford F-350 Super Duty Platinum 2020 Ford F-350 Super Duty XL 2020 Ford F-350 Super Duty XLT