About 6 years ago, 2008, I had a professionally installed system put in a 2006 Dodge. Electric pump, filter, fuel level gauge. Nice system. Ultimately it pumped into the OEM filler tube.
In 2010 I bought a new truck. I transferred the tank to the new RAM and simply hooked it up as a gravity-fed system. It's not as fancy, but it works just fine and is much easier to remove if I need to.
The only issue is that when both are full and the auxiliary tank shutoff valve is open, I cannot remove the factory fuel cap or fuel will come out.
I had mine installed in Elkhart, IN by the Dually Depot. Nice professional folks.
