Aux diesel tank in bed question...
I purchased a 2008 Silverado and it already had a 74 gallon aux tank in the bed hooked up to the fill pipe of the main tank. I sold the 74 gallon tank and purchased a smaller 37 gallon but was told no...
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Sounds like he relied on the seal on the gas cap to prevent the fuel from coming out. They used to install valves on floor board for changing over the tanks. Now they put fuel pumps in gas tanks. I would be thinking of disconnecting that pump and installing an eletric fuel pump in the engine compartment and a floor board valve to switch between tanks.. During smog test think it would have to be on main tank to pass. Years ago any welder would weld up a tank before strict smog tests.
