Thank you! Exactly which fuel tank is that and how many gallons? Those pictures gives me good ideas on a rear mounted fuel tank in the 56 pickup chassis. The only difference is I'd route the filler neck forward under the left rear fender (which is the same on my 56), where I plan to located the gas filler door I'll cut out of my 2001 Dakota donor chassis. I'll weld the filler door/recess into the left rear fender and direct the filler hose down to the fuel tank.