Backrack Tool Box Support 91021 (21")

Backrack Toolbox Brackets – Toolbox Brackets

The Backrack toolbox brackets allow you to install an over-the-rail or low-profile toolbox directly behind a Backrack, without drilling into the truck bed. They eliminate the gap between the rack and the toolbox, ensuring a solid, clean, and perfectly aligned installation.

Features

• Designed for a specific toolbox length (21 in. or 31 in., depending on the model)
• Allow the toolbox to be attached directly to the rack without drilling into the truck bed edges
• Reinforced steel construction for rigidity and durability
• Black powder-coated finish resistant to scratches, impacts, and corrosion
• Compatible only with certain Backrack rack models (see product sheet)
• Ideal for over-the-rail or flush-mount toolboxes

Installation

The brackets bolt directly to the Backrack and the corresponding toolbox. It is important to check compatibility with your rack (e.g., 10512, 10523, 30112, etc.) as well as the required toolbox length (21 in. or 31 in.).