Transfer tank
 

Truck is a 83 4x4 F250 front tank only.

I have an idea to mount a transfer tank. I will run a fuel line from the drain port with a safety valve. To a 3 way valve so i can select either my main tank or the transfer. The good thing is the return line is still my main tank so i will be filling it back up.

I wanted to install rear tank but my truck doesn't have one from the factory and with the sending units hard to come buy, having to install a filler neck and door, along with the rest of the mounting.

Any reason this will not work?

If the transfer tank is above the main tank and connected with a TEE fuel could gravity down to the main tank and overfill the main tank? :humm:

Also if you fill both tanks up and you are running on the transfer tank wouldn't the return fuel gradually fill the all ready fuel main tank?:humm:

I don't really like the idea of a tee into my filler neck. I know allot of people have and like them but it seems like a accident waiting to happen. By using my main tank until about 1/4 tank remains then switching to my aux i will not only run my truck but also refill my main tank. I just need to remember to keep an eye on my gauge and switch back to my main tank. I'm running a Holley red so it should refill pretty quickly.

Also it will only require a on/off valve (mounted on the transfer tank), fuel line, and a 3 way mechanical valve. No added vent lines or cutting into my filler neck.