Thanks guys, it really sounds like a personnal choice. As you know the 38 is different than the 37 in how you fill the tank, the 38 has a filler neck through the cab on the passanger side. I think this would help to not get a drop of gas in the cab and help to eliminate the gas smell. I guess If I moved it I would have to fill the hole in the passanger side of the cab where the filler neck is. Any suggestions on a replacement tank or kit? also what do they cost?