Specifications: Color: Black Material: Aluminum Position: Underbody Tread: Diamond Plate Key Included: Yes Overall Dimensions: 24″(L) x 16.9″(W) x 17.9″(H) Package Includes: 1 x 24″ Aluminum Under Body Tool Box 2 x Lock Keys How do you install truck tool box? Typical Toolbox Installation Steps First, determine where you’re going to place the tool box in your truck bed. Most people choose to install truck boxes directly behind the cab. Measuring Asked about the measuring tape because were about to measure your truck to make sure the toolbox fits correctly.