[moparguy]

So, I've picked up a marine tank for the truck. It fits fine in the front of the bed with only two issues. The fuel inlet and outlet.

The inlet I can handle and the outlet I think will work, just need a second opinoin or two. The outlet has a fuel pickup tube mounted on top of the tank extending to within about a 1/4" of the bottom.

If I tie the aux tank into the filler neck and block the factory tank vent, venting both tanks throught the aux tank will it siphon down into the factory tank as long as the oem fuel cap is tight?

I don't have the ability to weld aluminum or I'd put the outlet along the bottom of the tank and just gravtiy feed and forget the siphoning bit.

Thanks,

RJR