I am finishing up a lift kit on a 1974 FJ40 that has, as the title indicates, two fuel tanks running off the single stock filler neck. The was apparantly done in order to avoid putting a second filler neck on the outside sheetmetal of the truck.
The stock filler neck has a pipe welded into the side of it, which then proceeds about a foot into the interior of the bed, where it goes through a new hole in the floor to the underside of the tub, with a long horizontal hose to the tank.
Here are some pics:
The stock filler neck has a pipe welded into the side of it, which then proceeds about a foot into the interior of the bed, where it goes through a new hole in the floor to the underside of the tub, with a long horizontal hose to the tank.
Here are some pics: