Review on Buyers Products 1717105 Underbody Truck Box - Black Poly, 18 x 18 x 36 Inches: Best Price & Top Quality by Christopher Bates

This is a large box at a lower price than a steel box and weighs less. We bought 4 of these to put under the bus and they all leaked when it rained. There is a rubber seal, but the door is slightly bent. The sun's heat seems to distort the open door so much that it won't close. Two of us struggled to close it. We stopped leaving them open. We added $10 latches to each top corner to keep the door sealed, but the leak persisted. So we drilled a 3/8" hole in each corner and inserted 4" cotton rope to keep the water out. After a few rains, they dry up and can be used to store tools. According to the manufacturer, the box cannot simply be screwed to the chassis at the top. We agreed and made a stand to assemble them using angle iron and carving for $100 each and 10 hours. It was a hassle but we're glad we have the space!