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Discussion Starter #1
I just spent some time searching gas tank threads to about 6 years back.

I'm interested in swapping in an 18 or 19 gallon F-150 tank. I've read that some people have done it, but haven't read any more info than that.

So, ANY info on this swap is appreciated. I need a new tank, and would like to go with the smaller tank while I'm in need of a new one.

What is used for top and bottom straps? Do the stock Bronco fuel hoses work OK? Stock Bronco sending unit/pump work?
Any special concerns with the fuel gauge?
 

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Just waiting on my f-150 fuel tank to be delivered, (my swap shoud go pretty easy with no body on) I figure the fuel pump sending unit will have to be changed since the tank is smaller and I have an a/m gauge already.
 

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Discussion Starter #3
What do you have planned to hold it in?

Not to be a cheap ass but I'd hate to order the stock F-150 straps and they not work. A/Z wants over $30 for them.

Maybe buying used will be my best bet since I don't want tons of $$ into this as it was an unexpected thing. And I'll need a sender too.
 

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My tank is held in by the skid plate, only the top has straps, and I can lengthen or shorten them as needed, I already have a custom skid plate from when i raised my original tank so i can modifiy that to work.
 

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you could get some of those thin galvanized straps that they use on decks and stuff. there was also someone on here who used a strip of thin metal with holes in it although i wouldnt like that look.
 

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Discussion Starter #6
So I honestly don't have the time to go to the PnP anymore to pull a tank.

I found one that is in EXCELLENT condition but it is from an 86 and my Bronco is a 95.

Is there anyway I can use the 86 tank? Maybe change to a different sender that fits the tank but has an in tank pump and will hook up to my lines?
 

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So I honestly don't have the time to go to the PnP anymore to pull a tank.

I found one that is in EXCELLENT condition but it is from an 86 and my Bronco is a 95.

Is there anyway I can use the 86 tank? Maybe change to a different sender that fits the tank but has an in tank pump and will hook up to my lines?
not if it is the carbed model.
 

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AKA: Butthead
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what is the benefit of doing an f150 tank swap?
is it just a offroad clearance thing?
I did one! :)

Used a '90 F250 parts truck and did it so I could put a spare under the tank. :)

All done (major operation no kidding) and now going to swap back to the
32.0 tank! LOL :) I'm dumber than you thought, huh?

First off, the tire carrier bolts are way too short! :/
The 255/75-16E tire will hang down way too low to suit me.
I wasted a couple months working on that! :/

Since I've always carried two spares in my own pickup and the company
trucks, wanted one under and one inside my Bronco. :) After you get the
first flat, what do -you- do? ...change your plans? ;)

-------------------------

One thing that needs to be done is to remove the rear crossmember and
install one from the pickup a few inches back from there. Also have to cut
a shit-load of metal off the Bronco frame to get the tank to fit between the
rails.

OP, didn't read carefully (I'm in a hurry) but state your reason for doing this
and I might agree with what you want to do otherwise I say don't do it.

I'm still going to add a "16.5 gallon midship" tank from a '91 F150 Super Cab.
I want two fuel pumps. :) And I want two tanks because I'm really used to
that since I ordered that on my '75 F150 and been living with it ever since.

To add a midship tank you have to sacrifice the transfer case. ;) My plan is
for my Road Queen to go deep into Mexico or anywhere else maintained
roads go. My off-roading is behind me and that was done with dune buggies
and dirt bikes. YMMV on that. ;)

The rear tank you're talking about is either a 18.2 gallon or 19.0 (according
to Ford's numbers). Guys have added a "22" gallon tank from a Mustang
into Bumps and Dents, but all I know about that is -they made it fit-. :)

Alvin in AZ
 

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Discussion Starter #10
not if it is the carbed model.
Sorry to pester with potentially stupid questions but how do I tell? Some of the 86's were F/I and some were carb right?
 

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Discussion Starter #11
I'm swapping one if for a bunch of reasons.
1) smaller capacity means I can actually afford to fill the tank to keep accurate tabs on MPG
2) it goes along with the build philosophy of the truck. Low and max clearance.
3) I don't NEED a big tank. At 15mpg the range on a 19 gallon tank is 285 miles. 'IF' I ever travel somewhere and think I will need more two 5gal jerry cans bump the range up to 435 miles.
4) I found a small hole in my tank when taking it down to change the shackles and hangers. So NOW is the time to do the swap.

Can the tank slide in from the back if you don't have the bumper on, and remove the crossmember? If so I thought about bolting in the rear crossmember then if the tank needs to be lowered I can remove the bumper and crossmember and slide it out the back.
 

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4) I found a small hole in my tank when taking it down to change the
shackles and hangers. So NOW is the time to do the swap.
Q) Can the tank slide in from the back if you don't have the bumper on,
and remove the crossmember?
"taking it down"? ...as in... taking it to someone to do the work? :/
And, to turn it into a low-rider, or what?

A) I suppose it could slide in from the rear if you were willing to cut the
frame -enough- to allow it. There won't be much left of the frame tho,
no kidding on that. :) I wanted to retain enough frame to use the step
rear bumper to tow with. Tow parts trucks and others that are broken
down. Not to tow a big boat or anything like that.

The one thing messing with the "slide it in" idea is the rear body mounts.
Hmmm... and how the body's rear seam hangs down too.

It's not that big of a deal "to slip it in from the bottom ;)" ...just takes
quite a bit of frame-metal removal. I don't have pictures, ...they didn't
come out good and the idea is so dumb (I knew that at some level the
whole time!) didn't figure anyone else would do it. LOL :) I could take a
picture of the results, before I swap it back, the light colored tank would
show up good, I guess. :)

Yeah. :)
A set of (kinda sorry looking) pictures titled...
"don't do this at home (or anywhere else)"! LOL :)
...unless of course, you're building a low-rider?

If you really want a dangged low-rider just say so, I'll help you all I can. :)

Alvin in AZ
 

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Discussion Starter #13
How did you gather a low rider from ANY of that.:histerica

Pics would be nice.;)



Edit: By keeping it low I mean no lift. I'm running 35" tires though.
 

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"taking it down"? ...as in... taking it to someone to do the work? :/
And, to turn it into a low-rider, or what?

A) I suppose it could slide in from the rear if you were willing to cut the
frame -enough- to allow it. There won't be much left of the frame tho,
no kidding on that. :) I wanted to retain enough frame to use the step
rear bumper to tow with. Tow parts trucks and others that are broken
down. Not to tow a big boat or anything like that.

The one thing messing with the "slide it in" idea is the rear body mounts.
Hmmm... and how the body's rear seam hangs down too.

It's not that big of a deal "to slip it in from the bottom ;)" ...just takes
quite a bit of frame-metal removal. I don't have pictures, ...they didn't
come out good and the idea is so dumb (I knew that at some level the
whole time!) didn't figure anyone else would do it. LOL :) I could take a
picture of the results, before I swap it back, the light colored tank would
show up good, I guess. :)

Yeah. :)
A set of (kinda sorry looking) pictures titled...
"don't do this at home (or anywhere else)"! LOL :)
...unless of course, you're building a low-rider?

If you really want a dangged low-rider just say so, I'll help you all I can. :)

Alvin in AZ
I am guessing the cutting you mentioned is because of the taller frame rails in the F150? I did this swap in my 78, and rather than whacking the frame rails, I just beat the top/side corners of the tank in with a ball peen hammer. After a couple years of wheeling it I got sick of it. Once it got down to <1/4 tank it would randomly starve out on the trails. I enjoyed the clearance, but still managed to bash in the f150 tank. I went back to the 33 gallon tank until I find a suitable fuel cell. I agree, it's not worth doing if you're thinking of using it for wheeling.
 

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Discussion Starter #15
Anyone have pictures of this??
 

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i have a fuel pump for the rear tank of a 95 f150 and a front sending unit for it,if you needed to pick up one lmk will make a good deal
 

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it's easy.
I'll post some pics of the completed job. i did it 6 or so years ago
you don't need a f-150 cross-member just move the bronco one back
you will need f-150 tank straps.
87 and newer sending unit the ohms are reverse of 86 and old.
i know because i have a 86 with a 88 tank( i read empty when full and 3/4 full when empty. you need to remove about 3/4-1 in. of the bottom part of the c-channel(f-150 frame turns it down) that's all.
total job is about 3 hours if you are good at removing rivits.

that's the best i can due til i get home. you can see the rear cross-member moved back and no tank hanging down.
 

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Discussion Starter #19
Got the tank today, so I'm going to start working on it tomorrow.

As dumb as this sounds, given all the info I've already read about trimming the frame, I'm still not that comfortable with trimming it.
But whatever. No choice.

Should I box the frame section that is trimmed to fit the tank?
 

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There is a choice, you can hammer in the corners where the top and sides meet and it will fit except for the slight (1/2") notch you'll have to make in the frame for the filler hose.
 
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