Funnel with a hose plumbed through the floor. That's my next mod! :)

I never knew about the f26 tank until a few years ago.
I've always used the bronco tank in my trucks. My 87 up to my 95 have them. I just get the correct year for the sending unit diameter and it bolts in. Use existing straps with longer bolts and make spacers from conduit. Done it for 15 years now that way. Just modify existing sending unit like shown.

What size is the bronco tank. Someone mentioned 33 but I thought it was around 38.
Which tank is smaller in length and width, depth isn't an issue but my Reese hitch is a little inboard of the frame. ( I live in pa now but all my trucks are in Maine, I can't measure it)
I probably should replace the tank before I start building the exhaust for it. Cause I'd be pissed if I had to redo it after the fact.

Bronco tank is 32 gallon, which is also a hell of a lot better than a 19 gallon. The Bronco tank is smaller in width and length, but is deeper than the 38 gallon tank.

Nice writeup. Im thinking about converting both trucks to a single tank anyways.

Also do you have pics of the bracket you made to hold the pump onto the tubes?


I wonder if there is a 255lph pump module for these trucks at all. Gotta be a way to modify that module.

Sorry, I thought I had added that bracket photo into my original post. Here it is, nothing special really. Just some .031 stainless steel flat stock I had in the shop.

http://i223.photobucket.com/albums/d...ps8625ea00.jpg

As far as the 255lph pump module, I wasn't able to find anything back when I did this that was plug n' play like the Walbro unit. The plastic module itself can be taken apart, and it's just a normal in-tank pump inside. I'd imagine if you took some measurements you could probably find a bare pump to install in your module that was rated higher.

In my case, I had no plans on needing anything more than the stock 125lph pump, so I didn't dig into it too much.

I'm getting the 255 fdm when I replace my tank.
I've put aftermarket pumps in the stock fdm before. My 95 has 190s in the fdm.
Here's the 255lph fdm

HFP 255LPH Fuel Pump Assembly *Rear Tank* Ford F150 1990 - 1996

Bob, I know it is not online with the fuel tank, but do you have any pics of where/how they lengthened your frame?

I don't, but I can take some and send them to you.

Basically, they cut the straight part of the frame, about mid-cab, and welded in a formed channel with fishplates on the inside of the frame at either end.

Thank you for that link!

Perhaps ill pull one of the FDM's apart and see what's needed. I have a walbro sitting around.

Does this apply to brick noses or only obs?

so let me try to understand all this.


the 38 gallon tank you installed is orginally for a earlier model truck? what truck and why won't the fuel pump for that tank work for our trucks? it obviously has a elelctric pump setup. is it a connection difference at the electric side or the fuel lines being differn't?

i have a 89 f250 and just put all new fuel pumps and a rear tank in my truck. i would consider this mod for a future upgrade.

is there a way to make the gas gauge close to accurate with your modifcation? that and i assume the tank would fit that year truck?

The model number I listed is for a pre-87 truck. I forget the exact years. Nobody offers a 38 gallon tank for an OBS truck, not really sure why.

Good news is, rockauto.com lists a 38 gallon rear tank for bricknose trucks, part number F26E, which includes the parts you'll need to modify your stock sending unit.

Pre-OBS fuel injected trucks used a low pressure in-tank pump, that fed a high pressure inline pump mounted on the frame. I'm guessing this is why this tank isn't listed for an OBS truck.

I'm sure there's a way to make the gauge more accurate, by modifying the float rod.

I have read all the pages and have a simple question.

Using the Spectrac F26E I can install this tank with additional parts and reuse my current in tank fuel pump, sending unit, etc?

The truck in question is a 1988 F250 7.5L

All of the Spectra 38 gallon tanks I've seen come with an extension kit so you can modify your existing sending unit for use with this tank. So, yes is your simple answer. :)

Thanks!

So, assuming that the upper fuel tank straps are ok would I also need to purchase the Spectra part number ST16? This would be the behind the axle straps they manufacture.