The Tradesman Steel Combo Fuel Tank features a unique design that combines normal storage with an L-shaped fluid tank. This chest-style tank is constructed from rust-resistant 16-gauge steel in a bright finish. It features a sturdy one-piece no-sag design and its paints are electrostatically applied to maximize resistance to abrasion and corrosion. Plus ethafoam mounting strips protect the truck’s finish. See full dimensions below. A B C D E 80-gallon 48 31 25 8.5 20.5 90-gallon 54 31 25 8.5 20.5