When I bought my truck it came with a flat bed, but they rigged up raiator hose for the fuel filler. It wouldn't take in any fuel without spilling all over the ground. So when I got it home I bought a couple of peices short filler hose, that was made for diesel. I think there were about $10 a foot or something like that.
The only way I could get the front one to take any fuel was to keep it under the truck, other wise the angle of it was so sharp it would kick the pumps off. So in order to fill the front tank I have to crawl under the truck, and monkey around with it that way. Not a good option when it's -20 out and snowing. I've just kept the front one full and used the rear one all winter.
The rear one works o.k. but I have to reach pretty far in there to get nozzle up the the filler, so I have to get on my knee's. I can only use the small nozzles at the gas stations, and not all gas stations use the smaller nozzles for diesels. For one, the head of the small nozzles doesn't fit all the way into the filler. And for two, it pumps to fast and kicks off, after it sprays fuel all over.
The first thing that I was wondering, is if I can ream that filler out a little bit to get the nozzles to fit? And then what I was going to do is buy some exhaust pipe, not sure which size. Drill a hole in in it and screw in some kind of nipple and slide a hose over the for a better vent. Then, using that same hose I bought last fall I can couple the exhaust pipe to the gas tank on one end, and the filler on the other. And secure the pipe to my truck so I won't have to bend over to fill it up.
I'm probably going to have replace the inside hose with a longer one, being that I cut that down last fall so it would take fuel. Does all this sound plausible? It looks like that's how they do it on any flatbed I've looked at. I'm sure there's a kit I can buy, but if I can save some money by building it myself I will.

 

I worked at a gas station part time last year for some extra cash. I can tell you this... ALL flatbeds are a problem to fill, some worse then others. For us we always kept a a big old 4x4 board laying there, if a flatbed came in we would have him drive his read drivers tires up on it. That little extra lean on the truck is usually enough to make them fill properly.

 

When I built this flatbed I wanted recessed fuel inlets with no fueling problems, so I mocked it up and drove it to the truckstop and filled it to make sure it worked well.
After I finished it with the bodylines like I wanted it, I can fill up at that one and only pump at that particular truckstop without parking on a board. Every place I go sometimes I can and sometimes I can't. I could have raisen the bed one inch and eliminated this but then the body lines wouldn't match. Now I am going to change the cab and I think I will lift the cab and bed 1 inch to fix this problem.

 

Do you think what I'm about to do will work, even with the vent tubes? Maybe I'll scrap that idea and leave the rear one alone and cut a hole in the flatbed with a hinge on it for the front. I hate to do that cause then I won't be able to fill it if I have a load in it. But even as it is it's a pain.I thought to of buying a 65 gallon external tank to put in the bed and have it drain into the front tank some how, but I hate losing the space in the bed for that.

 

I don't know whay you can do to use the large nozzle at the truckstop, the opening in your tank is not big enough for that kind of volume. I have a 1 ton 2 car hauler with a 50 gallon saddle tank that can use the large nozzle. something like that may be your best option.
I have driven through most states and most truckstops have a auto lane for pickups with the little nozzle, or I would have been screwed as the way my bed is built with the tool boxes it would be a pita to try to fuel it from underneath.

 

I have been pondering how to put a fill up on my truck, but because I have a dump bed Im pretty limited in what I can do. The best I have come up with is have a short hose from the tank to a cap that can only be accessed when the bed is up, but Im not sure where I can get the cap and receptacle that accepts the nozzle do you guys have any idea where I can get one?

 

With a dump bed you have it easy. All you need is to build a bracket off the dumps subframe to hold the stock metal cap and pipe from a regular bed. you may want to cut a hole in the subframe to run the hose through.

 

thats more or less my plan, I just dont have the stock cap, lol when we got the truck there was a spray paint can top covering the tank inlet.

 

Pm me an adress. lol

 

i haven't rigged mine up yet.but it looks rather easy.i plan on just extending the hoses and mounting them via home made brackets like star is saying.
doesn't look like much of an issue.

 

Fuel caps are cheap at parts stores.

Under 5 bucks if I remember right at Advance Auto.

 

He needs the filler neck, Dave or thats what I understood.

 

On the big truck pump thing - I can fill at those, I have to manually hold the nozzle lever barely in or it will shut off or spit back at me, but I can used them pumps. To do this I removed the narrow necks insider the large filler necks, and also ditched the inside hoses attached to them - now the big 2" hole at the top is what goes all the way to the tank. Venting is done through 1/2" hoses attached to the top of the tanks in place of the factory rollover valves, altho I'd recommend that 3/4" hose be used instead as it allows faster fill-up.

 

The trick is gettin the air out as fast as possible. I did the same as M.S.L.C. with my vent lines. Removed the rollover valves, found some gromets to fit the holes and used some fittings for PVC valves and 3/4 inch hose run up high in front of the bed. For the fill I used one regular truck set up and 1 1/2 inch ehaust pipe. I made a bracket and welded it to the front of the bed the run pipe down at about a 45 angle to inside the subframe, then 90 it along the subframe to a Tee where it drops into the front tank, then from the Tee back to a 90 where it drops strait into the rear tank. I fill both tanks from the same spot and I can use the big nozzles at the trucks stops full blast no problem. Just make sure you don't overfill it because doing it this way will completely fill the tanks leaving no air room for expansion.

In this pic you can see the fuel cap between the bed and cab about 1/2 way up. You can also see the old holes in the bed where the fuel caps used to be. It would literally take an hour to fill both tanks with nearly as much on the ground when you were done.

 

I ended up using an exhaust pipe to get it out from under the bed, but I couldn't bring it out as far I wanted, but it will have to do. The problem is if I bring it out any farther the fuel will have to run up hill, I don't think that's an option. It would have been nice to put the filler in between the cab and bed like was mentioned, but there is only about an inch and a half of space. I pulled out the small hose that the fuel runs through and reamed out the filler neck. Then I took off the valve on top of the fuel tank, and stuffed a 1" hose in the hole. It was a pretty tight fit, I had to heat the hose up to push it in there. Then I sealed around the hose and the opening so no contaminates could get in there.
My regular gas station didn't have the nozzles that look like a ***** head, But the one I used was the bigger smooth one. I filled her up full throttle and it didn't kick out on me. It took about 30 seconds to pump 20 buck into her. Next I'm going to get the rear one working as good as the front.