Wrong aluminum tanks have a tendicy to crack at the welds and fatige crack at the pump bung.

 

Camera broke but here are some drawings.
The tank sits on top of two 4" I beams.

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This meathod also keeps moister (sp) from beeing trapped under the tank so you bed floor does not rot out.

 

I've had a Transfer Flo 50 Gal. tank since Jan. of 07'.I've haven't had any problems to date and I'm verypleasedwith the product. The one that I ordered is made of aluminized steel. It's totally automatic in keeping the same percentages of fuel in each tank. I opted for the 50 gal. due to it setting below the bed rail cap. Should I decide to install a tonneau cover, it will work fine without obstruction. The totalcost including shipping, installation and taxwas under $1500.00 As mentioned in an earlier post, it came with a display called the"Trax II". This is installed in your interior, and it displays the amount of fuel in the main, as well as the aux.tank. It also shows the total amount of fuel and the status of the system. You'll know when it is actually pumping. I suggest you check out their website, " www.transferflow.com" Below are a few pic's of mine, and good luck on you selection!

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[IMG]local://upfiles/53127/93E8673F15054A74BC5345D50A3F79E6.jpg[/IMG]

 

that sounds like a design flaw. if the welds are not perfect or properly re-enforced then I can see fatiuge.

steel tanks will rot out. maybe they seal the insides now, I dont know.

which ever the case is, Id go AL for the weight and weather.

 

I have seen this problem inseveral different mfg of aluminum tanks.
Even the best aluminum alloys cannot compare to steel for fatiuge strenght.
I have never had a steel tank rust on the inside with diesle.

 

I want to thank everyone for their input. It has only made the decision more difficult. I will be getting a bed tank now, but have to research the companies referenced above. Thank you.

 

will not argue with ya there.

Im just thinkin theres a bit more to the al tank malfuntionsthan what I have heard.

either way, everyones happy with what they got, I hope

 

If you get a steel one, you better make sure you have some type of filter on it before you dump the fuel into your stock tank. Whether it be gravity feed or some type of electric pump. If not, you will be changing lift pumps and fuel filters (maybe even a VP44 or CP3) on a regular basis due to the rust from the steel tank. Don't rely on the stock filter to keep your lift pump safe because it filters after the lift pump has picked up the fuel. It will only take about 6-9months for this to happen. All of us cowboy mounted shooters went out and had steel ones installed in our trucks about 3-4 years ago and many of us have had numerous problems. The Fords are the worst, he he he.

Mine is gravity fed and I put a filter on the line that feeds into the stock tank and it solved all of my problems. I love th tank and would not get rid of it for anything. Don't worry about the cost either because it will pay for itself in a short time. I travel a lot and fill it when I find the cheapest place. If you find it 10 cents cheaper somewhere, that saves you about 10 bucks. It took me about 6 months and mine had paid for itself!

 

Just a random curiosity question guys,

If you put in one of these additional tanks, can you use the "high speed" Diesel lanes? Is there still the automatic stop that one gets on gas pumps in a car? or do you have to keep track of how much you put in/had in?

 

I fill mine with a 1-1/2" high speed fuel nozzel.