Notices
Pre-Power Stroke Diesel (7.3L IDI & 6.9L) Diesel Topics Only

Installing a third fuel tank

Thread Tools
 
Search this Thread
 
Old Apr 12, 2012 | 01:43 PM
  #1  
lemonshindig's Avatar
lemonshindig
Thread Starter
|
Laughing Gas
Joined: Feb 2010
Posts: 859
Likes: 2
From: Port Orchard, WA
Installing a third fuel tank

The front tank is on the driver side of the frame. Is it not possible to get another front tank from the junkyard, mount it on the passenger side, and link them together for increased capacity?

Looking for a low-cost way to increase my fuel capacity. I run on biodiesel and I'd like to be able to go to the west side of the state and back (600 miles round trip) without having to buy fuel.

Thanks
-Matt
 
Reply
Old Apr 12, 2012 | 01:49 PM
  #2  
lemonshindig's Avatar
lemonshindig
Thread Starter
|
Laughing Gas
Joined: Feb 2010
Posts: 859
Likes: 2
From: Port Orchard, WA
Nevermind, I'm an idiot. The front tank goes between the frame rails.
 
Reply
Old Apr 12, 2012 | 04:06 PM
  #3  
tecgod13's Avatar
tecgod13
Logistics Pro
15 Year Member
Joined: Sep 2007
Posts: 3,737
Likes: 179
From: Western Mass
Originally Posted by lemonshindig
Nevermind, I'm an idiot. The front tank goes between the frame rails.
I wouldn't say you're an idiot for that, but how is your muffler setup? The stock exhaust and muffler run on the passenger side where the fuel tank is on the drivers side. So if you have the stock exhaust, then you're an idiot and it won't work. If you have stacks, its an interesting idea, though I'm not sure the tank will bolt up quite right if you flip it around.

Another option for more fuel capacity is replace the rear tank with the deep tank off a bronco. I think its something like 30+ gallons and hangs down where the spare tire would go. Its a direct swap, just need to modify the fuel sender to reach the bottom of the tank, and read the correct level if you want the gauge to work.
 
Reply
Old Apr 12, 2012 | 06:43 PM
  #4  
Otahyoni's Avatar
Otahyoni
Posting Guru
Joined: Jan 2010
Posts: 1,665
Likes: 4
From: Terre Haute, IN
Be careful of galvanized tanks though.

I have no idea what bio would do to it, but diesel will eat the coating...
 
Reply
Old Apr 12, 2012 | 07:46 PM
  #5  
joshofalltrades's Avatar
joshofalltrades
Postmaster
Joined: Feb 2011
Posts: 3,560
Likes: 1
another think i thought of some time ago was tanks from an older chevy truck, they sit outside the frame rails. there seems to be a lot of space there, though i haven't measured to verify it'll fit - it looks possible, but no guarantees
 
Reply
Old Apr 12, 2012 | 08:27 PM
  #6  
Aune163rd's Avatar
Aune163rd
Logistics Pro
15 Year Member
Joined: Sep 2010
Posts: 4,411
Likes: 4
From: Victor, MT
Club FTE Silver Member

Another way is to just to put another tank behind the seat if your a regular cab XD!
 
Reply
Old Apr 12, 2012 | 10:03 PM
  #7  
86f250XLT-4x4's Avatar
86f250XLT-4x4
Elder User
Joined: May 2011
Posts: 973
Likes: 2
From: Bellefontaine, OH
Club FTE Silver Member

What year bronco would have the tank that would fit?
 
Reply
Old Apr 12, 2012 | 11:18 PM
  #8  
lemonshindig's Avatar
lemonshindig
Thread Starter
|
Laughing Gas
Joined: Feb 2010
Posts: 859
Likes: 2
From: Port Orchard, WA
Originally Posted by tecgod13
If you have stacks, its an interesting idea, though I'm not sure the tank will bolt up quite right if you flip it around.
Even then it probably wouldn't work. The driveshaft is offset by a few inches, so there's less room on the passenger side of it.

So I'm still an idiot.

-Matt
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-1

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-2

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-3

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-4

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-5

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-6

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-7

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-8

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-9

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
Old Apr 12, 2012 | 11:45 PM
  #9  
hairyboxnoogle's Avatar
hairyboxnoogle
Lead Driver
Joined: Apr 2008
Posts: 6,938
Likes: 13
Originally Posted by lemonshindig
Even then it probably wouldn't work. The driveshaft is offset by a few inches, so there's less room on the passenger side of it.



-Matt
Was gunna say that myself. Have you considered a slip tank for the bed? If youre unfamiliar with them, they come in all shapes and sizes, tanks that go over the wheel well and stick to the side, L tanks for fitting under tool boxes, to standard square tanks that sit in the front. We have a 100gal tank for our 92 when we used to haul horses from idaho to california. Also, i can understand if you dont want a tank in the bed. So for that i offer an aftermarket tank. There are tanks designed to fit inside the bed skirt, similar to those older chevys. Theyre not super huge but theyre plastic and seem to have a good fit, i think theyre around 15gal, maybe more. Not sure on where you would get one, or for how much.

But if it makes you feel any better, i have a tale for ya. When swapped the diesel in, at the time it was too much work to make the front tank fit, so i did only the back. No biggie right? Well the foot for the pickup is apparently broke so i can only use about 3/4 tank, leaving me with 15gal before empty... even at 17-18mpg it still sucks, about a 250mile range.
 
Reply
Old Apr 13, 2012 | 12:12 AM
  #10  
Aune163rd's Avatar
Aune163rd
Logistics Pro
15 Year Member
Joined: Sep 2010
Posts: 4,411
Likes: 4
From: Victor, MT
Club FTE Silver Member

I am at this point too with my front tank, my FSV broke when i did the swap of motors....now im running on about a 270-290 mile radius before i have to fill up.
 
Reply
Old Apr 13, 2012 | 01:49 AM
  #11  
joshofalltrades's Avatar
joshofalltrades
Postmaster
Joined: Feb 2011
Posts: 3,560
Likes: 1
having factory twin tanks, i burn 15 gallons out of the rear tank and then switch over (thats where the gage hits empty), then run the front tank until i pass my "home" gas station again, which is almost always before its down to halfway. i have records of going up to 400 miles before filling up, and as i said, thats leaving a bit in the rear tank and a lot in the front one.
if i were in your shoes, i would go with a bronco tank in the rear, then decide if anything more is needed. also, a transfer pump between tanks would be helpful, as that allows you to run one tank totally dry, gaining you a few gallons as opposed to leaving a few gallons in fear of running out.

if you wanted a tank on the other side of the driveshaft, it would probably have to be custom made, which means more money than we want to think about
 
Reply
Old Apr 13, 2012 | 08:35 AM
  #12  
hairyboxnoogle's Avatar
hairyboxnoogle
Lead Driver
Joined: Apr 2008
Posts: 6,938
Likes: 13
Not sure if it matters anymore, but on the older trucks youre supposed to run out the front tank first. Otherwise the fuel gets to sloshing in the long front tank, and takes out your float, fuel pickup, etc.

My factory front tank is a plastic tank, problem is i dont have the one for a 79, then ill be set, i think... not sure what is going to be harder.. Changing pickup/ return on the tank insert, or making a similar tank fit. Either way its a job, ill be glad when its over.
 
Reply
Old Apr 13, 2012 | 10:19 AM
  #13  
Onus's Avatar
Onus
Fleet Mechanic
15 Year Member
Joined: Jun 2009
Posts: 1,320
Likes: 1
From: CT
Screw using a bronco tank. Use the 38 gallon rear that was offered on some 460 trucks.

http://powerstrokenation.com/forums/...ad.php?t=29893
 
Reply
Old Apr 13, 2012 | 12:09 PM
  #14  
batchman's Avatar
batchman
Mountain Pass
20 Year Member
Joined: Oct 2000
Posts: 180
Likes: 0
From: Backwoods Massachusetts
Originally Posted by tecgod13
Another option for more fuel capacity is replace the rear tank with the deep tank off a bronco. I think its something like 30+ gallons and hangs down where the spare tire would go. Its a direct swap, just need to modify the fuel sender to reach the bottom of the tank, and read the correct level if you want the gauge to work.
Originally Posted by Otahyoni
Be careful of galvanized tanks though.

I have no idea what bio would do to it, but diesel will eat the coating...
I'm new to burning oil but I am coming from a 84 Bronco and still have the big tank (I think it was 36 gal?). Looks like a direct swap (if I relocate the spare) but this leads to a couple of Qs:

- How to be sure about galvanized or not?
- Will the current float/pickup work with diesel?

Thanks,
- Jeff
 
Reply
Old Apr 13, 2012 | 02:20 PM
  #15  
Aune163rd's Avatar
Aune163rd
Logistics Pro
15 Year Member
Joined: Sep 2010
Posts: 4,411
Likes: 4
From: Victor, MT
Club FTE Silver Member

If its the stock tank from the bronco, its not galvanized...its steel. yes the current float as far as i know will work....
 
Reply



All times are GMT -5. The time now is 10:39 PM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE