[Ironhorse]

I relocated my tank to under the bed and have had no problem filling. Did you use a large enough filler hose with no constrictions or sharp bends? I see your mention of venting, do you have a vent tube connected with the filler receptacle? I have my tank filler inside the bed on the driver's side wheel well hump about mid-way up. Still use the truck as a truck but not as rough as I used to. Don't have any pics right now but if you need some give me a day or two and I can get them posted if need be.