Well guys,
After checking all the info in the ford sheets, guess what?, Ford does not offer extra fuel tanks for ANY Models. The factory tank is only 29 gals and that won't due for my needs here.

Now I have to find a couple extra tanks, need a minimum of 50-60 gals and 100 would be perfect.

My old 73-360 4x4 camper spcl came with 4 extra tanks for atotal of 150 gals, I could go/hunt all week and not worry about running short.

Have been checking the back posts but no luck so far, anyone added any extra tanks in their 250-350 4x4 models?, any suggestions or Ideas.

I'll have to measure the old tanks and see if they will fit on the new one,
no rest for the wicked, I MUST be rotten, off searching again..
thanks in advace,
nvreloader

 

Here's a site that may help: http://www.transferflow.com.

They offer all sorts of fuel tank options.

I know one popular thing among guys who haul for a living or drive a lot is a 100-gallon in-bed tank.

 

I've got a transferflow 98 gallon auxilliary tank in the bed of my truck. It was in there when I bought it and has worked flawlessly the few times I've used it. It automatically pumps the fuel from the aux tank to the main tank, so there are no switches to mess with. It has a little digital display on the dash that tells me how many gallons in the main tank, how many in the aux. tank, the total number of gallons, and if the pump is on. This is wired into the stock fuel gauge and makes the stock gauge display what my total capacity is. So if I only fill the main tank (38 gallons for me) then the stock gauge says I've only got 1/4 tank full.

I've only totally filled it one time and that was over a year ago when diesel was still about $2.80 a gallon. I enjoyed being able to drive 2,000 miles before having to fuel up again, but it cost me about $320 to do it. Now diesel is between $3.50 - $3.60 a gallon in my area. I don't want to think what that would cost. I've actually thought about removing the tank from my truck since I don't use it most of the time and there have been a couple times I could've used that extra bed space.

Matt

 

I've never understood the thinking of people like Matt. As long as you're burning the fuel in the big tank and not letting it grow algae, who cares if you fill up once for $320 or four times for $80/ea. It's the same fuel. The only advantage is, if you find a "cheap" station somewhere, you can take on lots of fuel rather than one small tank.

Nvreloader - Transferflow is the way to go from all I've seen. They also have a 57-gal. replacement tank for the OEM unit... maybe get that and the 98gal. in-bed tank, for 155gal. total?

 

If the price always stayed the same that would work, but it fluctuates. Alot these days. It's a gamble. Today it would cost me between $450-$480 to completely fill my truck. That is 1 truck payment. Granted, I wouldn't have to fill up again for months, but if the price comes down then I've got a tank full of expensive fuel when I could be burning cheaper stuff. There have been a couple times on trips where I found it considerably cheaper and pumped $100 or so into the big tank, but I've only filled it once.

Ok, it's not actually that bad. I could (and do, sometimes) drive in to Oregon and pay about 25 cents less per gallon(at the moment) and they have to pump it for me! I can't figure out for the life of me how all of a sudden a trip across the river could inflate the price of diesel so much! And it's only diesel! The gas is still around $3.00-$3.10!

Ok, back to tanks. Sorry. I got a little carried away and

Matt

 

Matt,just curoius,how has the added weight of the full fuel tank affected your overall mileage,have you noticed? Al

 

I didn't check my mileage when I filled the big tank. I didn't want to fill it up again. Just going on the average mileage I was getting at the time, I did get about the miles on the tank that I was expecting, so no, I don't think it really made much difference.

Matt

 

I was advised that I CAN NOT put extra tanks on this ford because of the return fuel flow lines and the newer trucks have the fuel pumps in the gas tank????

Can anyone explain that to me, as I don't know what is being talked about.
I have and can work on the old 73, I am not much of wrench turner.

I will have the valves/gas lines from the older 73 to connect everything together.
Thanks in advance,
nvreloader

 

Trucks with gas engines have fuel pumps in the tank, yes. I am not so sure about not being able to install more tanks, though. Someone has to have a workaround.

I don't think the in-tank pump is going to be your problem. You can use a transfer tank to get around that problem, I would think. Instead of plumbing it so you have two tanks that you choose between with a switch, you have one tank attached to the fill of the other tank. When it runs low, you flip a switch and pump it into your main tank. Now, I've never seen a real, live example of a transfer tank for gasoline, so I could be barking up the wrong tree.

I'm thinking they're worried about your fuel vapor management, which would be a problem on an extra hundred gallons. You can't just vent it anymore. I don't think you can just tap into the carbon can on the truck, either, because that'll swamp its capacity for absorbing vapor.

 

Replacing the fuel tanks on my truck. Just did the front and there was an extra line on it. Looked like it had a float valve on the end of the line that stuck into the top of the tank. I would say it was an auxiliary fill line, for a bed tank to gravity flow into the front tank and then stop flowing when the tank was full and the float closed off the line from the aux tank. Does this sound familiar to anyone??