Hello, I need some info on the relocation of the fuel tank in a 1966 short bed F100. I thought I read once in this forum that the frames from a 1965 F100 through a 1972 F100 are the same, so, could I mount a tank from a '67 thru '72 beneath my 1966 frame? From what I can gather, at least the '70 thru '72 had their tanks beneath the frame. What is strange to me is that this would seem like an obvious solution, but, all the posts show exotic tank installations into the 1966 from every type of vehicle except the later trucks. What am I missing here that makes this not be a legitimate way of relocating the 1966's tank? Is my info about the frames being the same incorrect? Many thanks for your help!

 

The tanks were in the cab untill they widened the frames in 73.

 

The In-Cab fuel tank was used thru midyear 1977. The tank used 1973/77 is different than 1961/72.

In 1967, Ford introduced a 25 gallon auxillary tank as an option on 1967 ('67/72) F100/350 Styleside pickups.

 

Grace, the late 60s early 70s Mustang tanks are a known between the rail fit. I have heard of all kinds of tanks modded in over the years.

Once back there you will then have to figure how to get gas in it.




John

 

Welcome to FTE! Grace554. what you will need to do is fab a door for the filler neck in the floor of the bed. early Mustang's and broncoII tanks fit where the spare tire goes with minor mods.

 

Welcome to the family of Ford truck enthusiast!!

Might try running a search on the topic and narrow search field to the 61-66 Ford truck forum, number of FTE members posted pic's of the relocation. Seem to recall reading an article where the filler neck was placed other than in the middle of the bed, although with the flareside, not sure there are many, if any, options. Came across couple filler neck doors in a Ford parts catalog that looked like they would blend in better than the standard stainless steel filler door, 1 simular to the later model trucks where the door is incorporated into the side of the bed, and the other looked like it would blend in with the top rail of the styleside bed. At one point considered relocating the tank on the 65 and bookmarked couple articles may find helpful. Anyhow, rambled on enough so again welcome to FTE, don't hesitate asking questions, and post pic's of your truck when can.

Installing a Mustang tank in a 60’s vintage Ford

Installing a Mustang Gas Tank - Tech Articles - Classic Trucks Magazine

 

What in the heck?

The only factory installed fuel tank on any 1961/66 F100/350 is the In-Cab fuel tank.

The saddle tank(s) and the fuel cap(s) that mount behind fuel doors [Usually these are aluminum and riveted] on Styleside beds are NOT Genuine Ford, they are AFTERMARKET.

The fuel neck/cap that is mounted on the bed floors of Flaresides/Stylesides is also AFTERMARKET.

Here on the West Coast, the Fey Bumper Co. offered a left or a left & right saddle fuel tank(s) for these trucks...because Ford did not offer one until...

1967. This is the first year that Ford offered (an optional 25 gallon) auxillary mid-ship fuel tank (Stylesides), on the drivers side only. It mounted inside the drivers side frame rail.

1967/69 Stylesides: The exposed fuel cap mounts above the scallop line (bumpside) about one foot directly behind the in cab tank's fuel cap.

1970/72 Stylesides: The exposed fuel cap mounts below the scallop line, about 1 1/2' behind the cab.

1973/79 F100/350's offered left (drivers) side mid-ship and aft axle fuel tanks. 1973/76: The Styleside/Flareside fuel caps are exposed.

1977/79: For the very first time, the fuel caps are behind (painted body color) fuel doors on Styleside/Flaresides.
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Bill W: 1965/73 Mustang fuel tanks have the neck exiting out from the rear of the tank at an upward angle. 1965/68: The tank is 16 gallons / 1969/73, the tank is 20 gallons, but...

CAVEAT EMPTOR = Let the buyer beware.

1970/73 Mustangs offered TWO different fuel tanks, because some have a coffee can sized hole in the top of the tank for the fuel vapor valve used with the Evaporative Emission system.

ALL vehicles sold new in CA have this system, some other states did too.

1984/90 Bronco II fuel tanks have the filler neck exiting from the drivers side.

 

Bill, Get a grip on yoself bro, we are talking modding here, (customizing) outside of you parts books. We all know that we are doing something different, but something that has been done over & over. We are not asking what Ford offered, you can still help.



John

 

John, read what Dave said, and what my response was. This has nothing to do with modifying fuel tanks.

Dave alluded to the fact that saddle tanks were genuine Ford factory installed on 1965/66's, when he mentioned the "standard stainless steel" fuel doors.

There was no such thing as factory installed saddle tanks on these trucks.

They were installed after the truck was sold new...because Ford did not offer any fuel tank for these trucks...besides the In-Cab fuel tank.

 

1965/73 Mustang fuel tanks have the neck exiting out from the rear of the tank at an upward angle. 1965/68: The tank is 16 gallons / 1969/73, the tank is 20 gallons, but...

that's why solder was invented......As if anyone read the original Classic Trucks article by Skip the spout was un soldered and rotated up. It's called making things that do not fit fit....BFH and My Ethnic Engineering Degree beside.

Those books are fine if one wants 100% concourse, however most want something that will work and hold gas and not explode upon turning the key. And Dave clearly mentioned later doors in parts books. BTW (LMC catalog is a ford parts book)....

For a custom tank look to fat fender trucks as the frame widths are similar and flat also. one may have to relocate a cross member or two but hey its custom....

I would use the early stang tank on carburetor builds but not on an EFI build as the return will pressurize the tank and that is an awful short feed.

Garbz

 

Sorry, misspoke, instead of 'standard' stainless aux. access door, perhaps should have used 'common'; or type 'seen most often', seems the P.O. of one of my 65's felt it necessary to install 'the' stainless aux. tank access door on both sides. O well!!

Back on topic, grace554, again welcome to FTE, hope the links were of some help, and don't hesitate asking questions, like to see pic's of yur ride.

Sacremento Vintage Ford has quite a collection of retro type Ford items in their catalog, including fuel access doors. Recall member posting pic's where he relocated the tank and had the filler neck and cap above the bed rail, having seen the access panels in the catalog just seemed with little refab would not take much to have shortened the neck and installed an access panel. Anyhow, food for thought. Could not find their access doors in their online catalog but for anyone interested can order their catalog free. Do require email address but don't find them annoying, may email me once a month with interesting info. Have not purchased from them, just don't have time for 'retroing' so can't speak to quality.

What's with these 'smileys'

 

Another Kewl Katalug is the Bob Drake Reproductions. Lots of really neat ford stuff in there..Eye candy for fordoleptics.

Garbz

 

I have a Isuzu Rodeo/Honda Passport tank under the bed of my 66. They were actually made in the USA too...

 

Some may revolt at that but i call it ingenuity. You now have a ethnic engineering degree, congrats.

Welcome to the club and send 1 liter of Patron silver to Garbz....

If you can do some pics and a write up on the install et al. Post it in the tech articles.

Most will quibble about it being a forein job but heck guess who made that repop Stang tank... HOCHIMIN industries. Canton ROC.

In fact i am interested. as i need to do the tank in the 63 and need a really low profile.

Garbz






Garbz

 

Yeah, I would rather be burned alive than own a import car... My mom showed up in a corolla, she parks it across the street when she comes to visit...

The Rodeo's sold here were assembled in Indiana and many parts made in the states...Including the fuel tanks. I wouldn't drive one, but I sure do enjoy pulling the fuel tanks out, with a sawsall.

The nice thing is it has a lp in tank pump that can be used as a pickup or wired in and feed a carb...