I have a 55 F100 that is needing a under bed tank. I was told different year Mustang tanks would fit right between the frame rails....just don`t know which years. Anyone able to provide that info.
Thanks

 

Hi and Welcome to FTE,

There's lots of info about mustang tanks here. I'll let the guys repost there pics and stuff.

Just be sure that you use a sending unit in the tank that's made to go with your 55 gauge, or a gauge that goes with the sending unit, or it won't work (the gauge)

 

There are several depending on the volume that you need. If you do a search, there are lots of detailed posts showing placement and step by step installation. I think the hardest part will be deciding what tip of access door that you want to install in your bed. Good luck, Jag

 

I have the 20 gal 1970 Mustang tank in mine there is a great write-up w/pictures in the tech articles.

 

Go here;

http://www.clubfte.com/users/jniolon...ustangtank.htm

 

I have a '70 mustang tank in mine (following in the footsteps of the great J Niolon, link already provided) make sure you think about your bed look before you finish selecting.. the filler collides with one of the bed strips, and you have to take that into account somehow. some like to put in remote fill door in the fender.
(its hard to cut a hole in a finished fender for sure!!)..

 

I have a 49 I want to do this to. I love the looks of this. I have yet to finish the bed which makes it perfect timing for this.

 

also, the 1970 20 gallon tank filler neck is slightly off center to the passenger side, while the 67-69 16 gallon tank filler neck is centered.

and as Julie noted, make sure you understand the gauge/sender matching requirements.. I had to cut a hole in the tank for the generic 240->33 ohm sender to match my gauges.
the mustang gauges of this vintage are 70-0 ohm.

this is one area where you have to plan multiple things at once to get it right.
and of course, IF you have stuff in the bed, AND need to get gas.. it can be a NOT fun experience..

I tried the rectangular filler access panel from Midfifty, that fits between the bed slats, but it was too small for my big hands to get the gas cap off..

Sam

 

Would this apply to the 48-52's also.

 

which 'this'?

Sam

 

Yes,....... to all of the above!

So, I kind of came up with a solution to the centre filler offset 20 gal tank (maybe).

Canadian production f1’s have narrower boards and thus an extra one. The kits are all for US production including the number of metal strips. (could buy a extra strip if I wasn’t so cheap) So, my plan at the moment (subject to many changes) is to go with one less board (same as USA) but so that I don’t have to re-drill all the holes in the cross member I’m going to use the narrow Canadian size except for the middle one and by doing this will be able to use a sheet of plywood cut into planks and dado-ed and the gap between the boards will make up for the plywood not being wide enough.

The centre plank / board will be double width and the offset gas door will look a little less goofy. Could be done on a USA f1 as well.

 

Old F1, aren't you concerned about the plywood delaminating due to moisture and time? Even if you do a good job sealing the edges I'd have to imagine even high quality plywood is going to eventually delaminate compared to solid planks of hardwood.

Probably not an issue if you can find some nice looking marine grade plywood, but here in the Northwest that'd be more costly (assuming you could even get it) than a bunch of hardwood planks.

 

Not as much as I am about BP’s mess in the gulf or other things that I can do nothing about.

Yep, it might delaminate, but the plan is to use marine grade and Varathane the heck out of it. I live in a semiarid climate with indoor storage and its going to be an unpainted semi work truck for fun which might last longer then me.

 

Question, i also have a 55, i have been considering the mustang tank. my 55 sets at stock height. do you think it would be possible to put the fill behind the licence plate. i will be building a custom bumper with the plate in the center. thanks.

 

The stock mustang tank is mounted such that the filler location is high between the taillights, and it also sits high in the f1 /f100, maybe but I doubt that you could get the filler low enough. An OEM license plate fill tank would work if it would fit between the frame rails. (firebird?) you would need a website with all the dimensions etc.

mustang tank.jpg