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 > best in-bed combo toolbox/aux fuel tank?

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obie311

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Posted: 02/11/18 10:32pm Link  |  Quote  |  Print  |  Notify Moderator

I'm pulling a 5'er with an 8' bed crewcab. I've been thinking a diamond plate aux tank/toolbox might be handy to have and not compromise towing and backing the coach.

Lots of US made brands available but without metal specs posted it's hard to tell who makes the best ones. When I spec'ed truck bodies in my old job we used to make jockey boxes out of 10 ga. steel but with aluminum I don't know what's sufficient for this application.

I'm familiar with Dee Zee and Lund of course. I'm not familiar at all with RDS, Better Built, UWS, Aluminum Tank Industries.

Another 40- 70 gallons would be good and a decent sized tool box for jumper cables, DEF jug, lug wrench, cribbing, etc.

Thanks in advance for your help.

austingta

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Posted: 02/12/18 01:00am Link  |  Quote  |  Print  |  Notify Moderator

I had an RDS 60 gallon tank and it was high-quality. No problems with it. Nice locking cap and gauge too. It fit below the rails. They make a combo too...

https://www.northerntool.com/shop/tools/product_200370678_200370678


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Posted: 02/12/18 07:24am Link  |  Quote  |  Print  |  Notify Moderator

I've been using a 91 gal RDS combo box since 2006. It's been great!. I gravity feed fuel via the truck fill tube (T-fitting). Toolbox is somewhat shallow due to large tank but box holds all the tools I want to carry. Combo does not ride above the side rails of truck. Extra fuel capacity allows me to shop for best prices. One note: If I open the fill valve to continually meter fuel into the truck's tank, eventually I will get a CIC as the truck's computer doesn't see the fuel level diminishing as miles go by.


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Posted: 02/12/18 08:20am Link  |  Quote  |  Print  |  Notify Moderator

Don't forget Transferflow. At least I think they make what your looking for. If they do, tad pricey. Northern Tool as well.


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George H

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Posted: 02/12/18 09:04am Link  |  Quote  |  Print  |  Notify Moderator

Used 50 gallon TransferFlow combination since 2002, only issue was accuracy of the fuel guage (factory tank reads 5 gallons low for last few years).


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Posted: 02/12/18 11:15pm Link  |  Quote  |  Print  |  Notify Moderator

RDS and JME are best quality I've seen. Then Weathergard. Never seen a transfer flow, but most of the Deezee, Kobalt, etc brands are lesser quality.
Get what you pay for type of thing.
I've only had about 20 new truck boxes and or tanks in the last 20+ years and been around 100s of them in our trucks. FWIW, Weathergard is probably the best selling.

That said, not a lot to go wrong with a fuel tank. They all hold fuel just the same. Never seen one leak and a toolbox for casual use, any brand will likely last a long time.


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Posted: 02/13/18 07:05am Link  |  Quote  |  Print  |  Notify Moderator

For the space taken in a tool box for a fuel tank it would make the tool box portion IMHO useless!

Also people "think" this is something they have to have for some unknown reason kinda like having to go to Mexico for Dental work.

Another thing to consider is the weight you are adding to the rear axle when most are pushing it's limits already.

"IF" I were to add fuel capacity I would go with the Titan 55 gallon replacement tank.

Here is my extra fuel capacity that I keep in my bed high 30" front to back tool box. I have needed to use this ONCE even with my 32 gallon OE capacity.

I did modify the fuel container with an add on vent and standard nozzle so it would actually pour fuel.

[image][image]


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Posted: 02/13/18 03:15pm Link  |  Quote  |  Print  |  Notify Moderator

I have the 60 gallon RDS. Installed when I bought the truck new 6 years ago. Best upgrade I have done. Gravity fill, I leave it open all the time, and I have never seen a check engine light.

Pretty sill to compare a aux tank to a 5 gallon container. And the Titan replacement tanks are nice, but IMO that is too much $ to spend on an extra 15 or 20 gallons of capacity.


2012 RAM 3500 Laramie Longhorn DRW CC 4x4 Max Tow, Cummins HO, 60 gallon RDS aux fuel tank, Reese 18k Elite hitch
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Cummins12V98

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Posted: 02/13/18 04:19pm Link  |  Quote  |  Print  |  Notify Moderator

"Pretty sill to compare a aux tank to a 5 gallon container."

Silly? OK if you say so. I was trying to show that a person may not really NEED a extra fuel tank. Also the fact I have only needed it once. Cost was minimal and to add to the Silly conversation it is very unlikely anyone will pay back the cost.

As I showed a real toolbox is a much better thing to have IMHO.

Bionic Man

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Posted: 02/13/18 04:32pm Link  |  Quote  |  Print  |  Notify Moderator

Cummins12V98 wrote:

"Pretty sill to compare a aux tank to a 5 gallon container."

Silly? OK if you say so. I was trying to show that a person may not really NEED a extra fuel tank. Also the fact I have only needed it once. Cost was minimal and to add to the Silly conversation it is very unlikely anyone will pay back the cost.

As I showed a real toolbox is a much better thing to have IMHO.


Your alternative is sill. And off topic.

The OP states that he is looking for something with a capacity between 40 - 70 gallons. And you tell him he should look at a 5 gallon plastic tank that will give him an extra what, 40ish miles, but he still has to stop and pour it into his main tank to use it. He didn't ask for a full tool box and plastic jug. He asked for combo tank experience.

Without exception, when these threads come up, you step in with your opinion that a aux fuel tank isn't "needed". Obviously the OP thinks otherwise.

As far as "payback the cost", for most of us that have an aux tank, it isn't about "paying back the cost". Nor is it a matter of "I can only drive for so long before I have to stop to eat or use the restroom". It is about being able to chose where you stop, not be forced to stop because you have driven for 300 miles and are now out of range.

And, since you already brought this off topic, I can tell you with confidence that I in fact have "paid back" the cost multiple times over.

Now, hopefully we can get back to the posts answering the topic at hand.

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