Transfer Flow has introduced a 70-gal. toolbox and fuel tank combo for 1999 – 2016 Ford, Ram and GM full-size diesel trucks. The toolbox and fuel tank combo sits on the bedrails, and has an adjustable toolbox storage box that adjusts to the depth of a short bed or long bed pickup for a custom fit, according to the company. The adjustable toolbox storage area ranges from 5 ½ – 9 cu. ft.

The toolbox tank is made from 14-gauge aluminized steel for superior strength and rust resistance. An aluminum diamond plate lid comes with it.

The 70-gal. auxiliary tank is controlled by Transfer Flow’s Trax 3 fuel monitoring system, which transfers fuel automatically to the OEM fuel tank at predetermined levels. It includes a dash-mounted LCD display that shows the fuel level percentages in each tank and the operational status of the fuel system.