WANTED: aux fuel tank

[madmaxdmax]

Looking for a 55 gallon aux fuel tank that can be installed in the bed of my truck under the rail. Aluminum or steel - I am open to a new or even slightly used tank, preferably one that is less than 10" in total height (so that it can fit under the roll top bed cover box at the front of the bed).
PM me with whatcha' got.


Thanks,

MADMAXDMAX

[blksmok]

I've never seen a 55 gallon less than 10" high... Only the 37 gallon like I used to have. Who makes one like you are looking for?

[madmaxdmax]

RDS makes a 55 gallon aluminum, rectangle. The dim's are actually: 36-1/2" long X 22" Wide X 6-1/2" Tall. This size would work or the other option is an "L" shaped tank that the shorter part of the "L" shape would slide in under the roll-top storage box at the front of the bed - it is 48 gallons though. I thought someone out there may have a tank they were replacing and needed to find it a good home in my truck bed

[madmaxdmax]

I would be willing to trade someone my B&W goose-neck hitch that I have on my truck - never even use it...for a nice aux fuel tank ??????HMMMMMM):h

[blksmok]

RDS makes a 55 gallon aluminum, rectangle. The dim's are actually: 36-1/2" long X 22" Wide X 6-1/2" Tall. This size would work or the other option is an "L" shaped tank that the shorter part of the "L" shape would slide in under the roll-top storage box at the front of the bed - it is 48 gallons though. I thought someone out there may have a tank they were replacing and needed to find it a good home in my truck bed

I think you misread that or the size is stated wrong somewhere. The dimensions I found for the RDS 55 gallon tank are 36 1/2" long x 22" wide x 16 1/2" tall
Check here. http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_200306743_200306743

[madmaxdmax]

I think you misread that or the size is stated wrong somewhere. The dimensions I found for the RDS 55 gallon tank are 36 1/2" long x 22" wide x 16 1/2" tall
Check here. http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_200306743_200306743

Part number is 3490164-1808 - rectangle.

Dims: 36-1/2"L X 22" W X 6-1/2" high $379.99 per Northern Tool catalog page # 96 It is described as a smooth finish 55 gal aluminum diesel fuel tank made by RDS.:thumb: I believe the part number you are referring to is #3490174-1808 it is listed prior to the part number and description of what I am currently looking at. It too is 55 gallons and rectangular and it goes for $399.99

[madmaxdmax]

Yeah...so Northern Tools master catalog does not jive with the on-line catalog. The web-site does not even have the part number that I found in the paper catalog. I guess I have to call and talk to someone there.):h

[blksmok]

I can't see how two tanks that are both 36 1/2" long x 22" wide can both be 55 gallons if one is 10 inches shorter than the other.

My 37 gallon tank was about 36 1/2" long x 22" wide and it was 9" tall.

The numbers don't jive...

[madmaxdmax]

Dave,


So far Northern Tool can't explain their error. Seems like a MISPRINT. I also questioned the dims and tank capacity error.

Anyhow.....with all that behind me I have decided to go to a local custom fuel tank mfg. here in Phx. to have one "custom made" for my specific measurements :thumb: All I had to do after discussing the options with the owner was fax him a diagram of the specific dims. and bung locations, etc. and I can expect it early next week (two days to fabricate). They are going to install three baffles. The tank will be 45 gallons, a little smaller than the 55 gallons I was looking at but it will be better then only having 28 OEM.-:t


BTW. What size fitting does the Northern Tool aux fuel gravity "Y" connector come with (if in fact this is where you purchased yours from)? I figured that the drain on the new aux. tank should have a 1/2" MPT for this connection. Pls. let me know if you can so that I can forward it to the shop.

Thanks

[blksmok]

I decided to move this discussion here since there may be others that have similar questions...

So I finally finished up installing the aux tank this hot afternoon. How many mounting tabs did your tank have welded on? My tank has only two on the back-side (side facing the tailgate) and I was wondering if only the two would be secure enough. The tank fits tightly between the fender-wells so side-to-side movement shouldn't be a problem. Any thoughts on this ?

My 37 Gallon only had two tabs. Two tabs on the "front". (side facing into the bed when tank is in place against the cab side of the bed)
My 60 gallon with tool box has three tabs. One on each "end" (driver and passenger side), and one in the middle of the "front".

Hey there Dave,


I have two more questions re: my aux. tank. I have it installed and made the connection with the RDS valve for gravity feed. My first question is...Upon cutting the filler hose (2" ) I noticed a smaller plastic hose running the full length on the inside of it. I assume that this is for air venting while filling up? It was cut off just before the "tee" connector and I pulled out the remaining section that went to the oem tank. I hope it doesn't screw anything up. Did you run into this as well?
second question (actually third), is there any type of air vent that can be installed on the top of the RDS tank by the filler neck that will let out air instead of fuel if not what would you reccomend I use.

[blksmok]

I'm not 100% positive what that hose is, but I also assumed it was a vent line and thus I left it alone. I'm pretty sure, you would want to put it back to the way it was...

As for the vent on top the tank, I used a small piece of fuel hose on the vent nipple and then attached a small inline fuel filter to it, leaving the intake side of the filter open to the air. This allows the air going into the tank to have some sort of filter so that you aren't sucking in dust and it will keep any fuel from sloshing out when the tank is completely full. It works great.

[NWTDIESEL]

Alot of guys out here just get a used one from a construction company, cut it down to what they want, re-weld everything up and have them rhino lined. Alot cheaper and looks good........doesnt scratch like paint.

[madmaxdmax]

I'm not 100% positive what that hose is, but I also assumed it was a vent line and thus I left it alone. I'm pretty sure, you would want to put it back to the way it was...

As for the vent on top the tank, I used a small piece of fuel hose on the vent nipple and then attached a small inline fuel filter to it, leaving the intake side of the filter open to the air. This allows the air going into the tank to have some sort of filter so that you aren't sucking in dust and it will keep any fuel from sloshing out when the tank is completely full. It works great.

I ended up leaving the plastic inner hose in place up to the "tee" connector. The balance of the piece that originally went the rest of the way to the oem tank had to be removed due to it not fitting through the center of the in-line tee connector valve that connects from the aux tank drain connection. Great idea on the fuel line and in-line filter.
:thumb:

[blksmok]

Through the center of the "T" connector? Are you saying there was a smaller hose inside the main filler hose? If so, that's not what I have seen on my '05 or my '07. Both had a smaller hose that ran along the outside of the main filler hose...

[RickDLance]

The earlier trucks had this. It had something to do with venting. Keeps you from putting a big nozzle in IIRC.

[hondarider552]

ohh ya thats right rick.. steve you cant use high flow nozzels ie semi pumps to fill the oem tank. too much fuel going in and not enough tubing..

[blksmok]

He can in his new aux tank. :thumb:
I love the semi pumps. Pumping 90+ gallons doesn't take long :D... I just hurts the pocket book. :(

[madmaxdmax]

ohh ya thats right rick.. steve you cant use high flow nozzels ie semi pumps to fill the oem tank. too much fuel going in and not enough tubing..


I have not had any probs before when the smaller tubing was in there. NOW without the tubing, I can fill-up faster :thumb: The aux tank has no restrictions as this will more than likely be the only tank I will have to fill on my road trips. HE! HE! ):h

[madmaxdmax]

Through the center of the "T" connector? Are you saying there was a smaller hose inside the main filler hose? If so, that's not what I have seen on my '05 or my '07. Both had a smaller hose that ran along the outside of the main filler hose...



Yes...smaller hose (plastic flex) within the larger 2" rubber hose. I don't have an outer vent hose so I think this was GM's "vent" system for earlier years. I kept the smaller inner plastic hose up to where the "tee" was connected and removed the rest. As far as the aux tank...your correct again fast fill-ups here I come !! I don't expect that I will have to fill the oem tank up for quite some time since the aux is near double the capacity:thumb: Oh yeah Dave, I also installed a rubber fuel line to the aux vent elbow and then connected a fuel filter with a clear housing at the other per your great suggestion. We'll see how it vents now.

[madmaxdmax]

The earlier trucks had this. It had something to do with venting. Keeps you from putting a big nozzle in IIRC.
Agreed...thought this was what it was for. I was a little surprised though when cutting through the 2" rubber hose to find a smaller plastic one inside:(