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Old 01-30-2020, 01:48 PM   #1
Marty68
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under bed tank

I am wanting to ditch the half barrels as fuel tanks. what tank is preferred.
does someone have a picture of the tanks inc unit installed? how much room is there between tang and differential if installed with spare tire crossmember remaining in truck?
where does the filler neck come out, how far forward, in the bed?
my rear is triangulated coil with shocks mounted to the rear of dif. taking up a few inches. I would not want to mount take where it had to be removed to service rear end..

I understand the mustang tank fits well and is a bit bigger but I don't think I can leave spare tire crossmember with it.
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Old 01-31-2020, 06:29 PM   #2
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Re: under bed tank

I used a Tanks Inc unit. It fit nicely, although if I had to do it again, I would mount it a little higher as I think it will be visible from behind. I am running an Art Morrison chassis, so your fit may not be the same.
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Old 02-02-2020, 02:00 PM   #3
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Re: under bed tank

I talked to tanks inc. They have a model based on mustang tank.. it has chamber for future EFI. And proper 5 hole for gm sender. It however would require rear support to move. I am working with a site vendor to acquire. More info to come.
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Old 02-02-2020, 02:59 PM   #4
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Re: under bed tank

Moving or replacing the rear cross member Is pretty well standard procedure when you do the tank swaps.

You would think that someone would be selling a bolt in/weld in replacement crossmember specifically but I don't remember seeing one.

Several of the guys have made them for their trucks and hopefully a few post detailed photos.

It isn't rocket science, you get a length of square tubing with the right dimensions and weld it or figure out how to bolt it in place moving it back far enough to clear the tank while not blocking access to the holes in the frame that the rear bumper brackets bolt to.

When I did mine way back when I used a piece of what look and may have been the track for an overhead door that rolled sideways with trolleys inside the track that I dug out of the scrap pile at work. It was free and the right size. I used a 20 gallon aluminum tank intended to be used as an auxiliary tank on my moms conversion van but works great on the 48. The capacity is nice on long road trips but 16 gallons is plenty unless you have an engine that drinks gas like a Key West bar fly goes though beer.
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Old 02-02-2020, 10:25 PM   #5
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Re: under bed tank

Quote:
Originally Posted by Chopped53 View Post
I used a Tanks Inc unit. It fit nicely, although if I had to do it again, I would mount it a little higher as I think it will be visible from behind. I am running an Art Morrison chassis, so your fit may not be the same.
beautiful work!
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Old 02-03-2020, 01:37 PM   #6
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Re: under bed tank

i just ordered tanks inc. tank from
Site vendor MCB - Matt's Classic Bowties
5360 Gateway Plaza Dr.
Benicia, Ca. 94510
925-828-5555
part # mu-2ht tank
# tan-gme sender
# pta-g pick up.
this is EFI upgradable Matt saved a few bucks over ordering from Tanks inc.


www.mcbparts.com - NEW Site Coming Soon!
Email: forums@mcbparts.com

Like us on Facebook for exclusive offers, info and chat: www.facebook.com/mcbparts
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Old 02-06-2020, 10:21 PM   #7
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Re: under bed tank

This arrived today. Matt at MCB site gold vendor great service beat tanks Inc. Price delivered I. 2 days
I sat under truck and formulated a way to Install that will be easy on person. I need to acquire some more 1" tibe more pics to come
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Old 02-10-2020, 08:55 PM   #8
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Re: under bed tank

How many gallons is the tank?
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Old 02-10-2020, 09:10 PM   #9
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Re: under bed tank

The one pictured is not the one I ordered. It is 16 gallons and going back for the MU -HT?
I ordered the MU-2HT. Which is 20 gallons. The 16 can go under the crossmember. But I want 20 gallons. I will post pictures of how I am mounting it. It will be a week or two.. 2 jobs and bowling season.
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Old 02-13-2020, 05:35 PM   #10
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Re: under bed tank

As I await the 20 gallon. And the 16 returned. I decided to take some bed wood out. Then build a new rear crossmember. I will be cutting old one out.
I have not welded for a bit. Not too shabby. I used 1/8" plate to box the end of 2" #11 square tube. I slid it just inside frame rails. My bumper brackets will still bolt on.
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Old Yesterday, 09:14 AM   #11
Marty68
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Re: under bed tank

Quote:
Originally Posted by Chopped53 View Post
I used a Tanks Inc unit. It fit nicely, although if I had to do it again, I would mount it a little higher as I think it will be visible from behind. I am running an Art Morrison chassis, so your fit may not be the same.
what are you using for fuel lines?
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Old Yesterday, 10:07 AM   #12
Marty68
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Re: under bed tank

slow progress. i ordered a different filler neck to get it coming straight up. i will then try to raise it an inch if can.
now i need to decide on fuel lines. input would be gladly taken. i have an old 283. so no electric pump, the tank has a sump so fuel injection is possible in the future.
the pick up tube bolts in where a fuel pump would g. it has 3 outlets
one to be used as a suction line to inline pump or block pump.
another to be used as a return.
the third has a bab end and is intended to be used for the included rolover valve/vent.
i am thinking running flare line 3/8 from both feed and return to a bulkhed at front of tank the return plugged off. and the vent run to same bracket and up as high as possible.
any advice on a preferred "not plastic" fuel filter. maybe mounted right there at front of tank. then what line from there to existing hard fuel line to fuel pump.
i am open to criticism advice suggestions and photos of yours
my goal is to do it once.. without costing too much. i want the tank easily removable.
thanks for your time
Marty
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