Northern Tool manufactured side truck diamond plated aluminum tool box. Its approx sizes are: 60" X 12 X 12 , TO FIT PICKUP TRUCKS. New this box is $359 plus sales. This is used but comes with their Lifetime warranty. I am REDUCING this to $165 for it, a big savings to you. It will need to have the locks rekeyed or locking mechanism replaced. These are around $10 each.
Features for Northern Tool Side-Mount Truck Tool Box — Aluminum, Diamond Plate, Pull Handle Latches, 60in. x 12in. x 12in., Model# 36012758. It is made of a solid one-piece aluminum body construction. It's reinforced metal lid brace adds strength and durability, with weather-resistant seals to keep contents dry in all conditions. Its continuous piano-style hinge provides more secure closure.
Can be used on a utility trailer or yard trailer for lockable storage