Let's talk fuel tanks.......
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Cargo Master
Joined: Oct 2010
Posts: 2,674
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From: Ideeho
Let's talk fuel tanks.......
Ok, I'm sure this has all been discussed before, but, I've had no luck with the search......I've got a '78 F150 4x4. It has the single rear mounted tank. I replaced the original 19 gallon with a 38 gallon a few years back and like the extra capacity. The problem I have is I am doing a 4BT swap and have read negative things about using a galvanized tank with diesel fuel. In fact Detroit Diesel and Caterpillar say it's a definite no-no. Apparently the sulpher in the diesel fuel will leach the zinc out of the galvanized coating and screw up an injector pump.......Don't know if it applies to Cummins or not........I have been thinking about using one of the higher end epoxy tank coatings but after researching those.....I think I can buy another tank for about the same price.......MY question is.......Where can I get a oversized (doesn't need to be 38 gallons but would be nice!) poly tank???? I've Googled and searched but not having any luck. Will the Bronco tanks fit a F150? Anyone know an answer???? TIA
Mountain Pass
Joined: Apr 2015
Posts: 203
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They arent cheap, but aero tanks makes tanks that can use gas or diesel.
Ford Fuel Tanks - AeroTanks
Ford Fuel Tanks - AeroTanks
More Turbo
Joined: Apr 2007
Posts: 656
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From: Salisbury, PA
I ruined 3 injection pumps on my IDI rather quickly. Switched to a plastic tank and went to a Cummins swap and never had a problem since.
I have not seen bigger plastic tanks. With the 4BT you will probably be getting almost double the mileage as your old gasser so a 19 gal tank won't be so bad.
I have not seen bigger plastic tanks. With the 4BT you will probably be getting almost double the mileage as your old gasser so a 19 gal tank won't be so bad.
Senior User
Joined: Nov 2010
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From: Arkansas
JBG offered bronco tanks and truck tanks in plastic in their catalog on my desk. A truck tank is 19 gallon only in plastic. The bronco tank is 25.5 gallon and 33 gallon. Maybe one of the Bronco tanks would work?
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Cargo Master
Joined: Oct 2010
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From: Ideeho
Yeah.....I have found the Bronco tanks on JBG......just wondering if anyone has used one before I pay the shipping to find out if it will work.........and yes......25.5 or 33 gallon would be better than the stock 19
Laughing Gas
Joined: Mar 2003
Posts: 789
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From: Durham, NC
The 78-79 full sized bronco 33 gal. tanks fit but you have to use the bronco bottom straps (or fab extended straps). Keep in mind it hangs down another 3-4 inches. There's a bolt-on hitch for the bronco that accommodates the 33 gal tank that provides protection. But you really need quite a bit of lift (tires / body / suspension / combo) especially on a long bed to be able to run the 33 gal tank without scraping it on asphalt on sharp inclines. And plastic doesn't play near as nice as metal does with asphalt.
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Senior User
Joined: Jan 2006
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From: Montana
The 78-79 full sized bronco 33 gal. tanks fit but you have to use the bronco bottom straps (or fab extended straps). Keep in mind it hangs down another 3-4 inches. There's a bolt-on hitch for the bronco that accommodates the 33 gal tank that provides protection. But you really need quite a bit of lift (tires / body / suspension / combo) especially on a long bed to be able to run the 33 gal tank without scraping it on asphalt on sharp inclines. And plastic doesn't play near as nice as metal does with asphalt.
After reading this post I went and measured my 33-gallon tank clearance versus the spare tire carrier hanging under the rear tank of my F-150 4x4. The spare tire has all of 1/2" more clearance. So provided that a spare will not be mounted below the 33-gallon tank, I don't see there being any additional clearance issues.
Laughing Gas
Joined: Mar 2003
Posts: 789
Likes: 7
From: Durham, NC
Mine has these straps underneath and not a skid plate.
1978-1979 Ford Bronco 33 Gallon Lower Gas Tank Straps Pair-Broncograveyard.com
1978-1979 Ford Bronco 33 Gallon Lower Gas Tank Straps Pair-Broncograveyard.com
Senior User
Joined: Jan 2006
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From: Montana
Yes, those are intended to replace the factory skid plate and may even make them work on a pickup when installing a 33 gallon tank. The OE skid plates can be tough to find as many rusted out over the years.
Laughing Gas
Joined: Mar 2003
Posts: 789
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From: Durham, NC
The diameter of the hoses changed and the pickup is totally different. Wiring is different as well. 90-96 had an internal pump that pumps more than a carb can handle. So a regulator would also be needed. Although the same size, it would only work if you swapped everything including wiring and added fuel injection. And you would have to fab up the nozzle that attaches to the bed as well. Or a combo of some sorts there of? Pretty sure there's other differences as well?