4. Here, we have the shiny new Devious-built fuel tank and its new crossmember that allows it to be higher than the stock version. It is shaped to fit the factory location without having any part of it under the frame. The tank is a bit smaller with a fuel capacity of 14-1/4 gallons, opposed to the 19 gallons the stock version holds. It's a sacrifice, but it's better than burning down your truck.