Jerry Can, Fuel Can Mounting

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Joined
Feb 22, 2026
Threads
4
Messages
20
Location
Portland, OR
I need extra fuel capacity for back road travel. I'm interested in seeing successful mounting options. I'd like to minimize how much I have to drill into the tub or rear door (1976). Please toss back pictures of installs that make you proud.
 
There is a new version of the conn-fer on farce book but it doesn't want to let me link it. Sorry
 
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Get an auxiliary tank that mounts under the bed if you have the room for it. It’s cheaper and better than carrying fuel cans. You don’t want to mount gas cans to the door or the tub, that’s a lot of weight to put on sheet metal and hinges that were not designed for it. Even the spare tire carrier would be overloaded with the additional weight of 50lbs of fuel. To do it correctly you’d need a (heavy) bumper mounted swing out carrier which is much more expensive that a second tank, and still won’t hold the same amount of fuel.

Aux tank only adds about 30lbs when empty, holds 20+ gallons as low as possible, and is invisible so won’t be a target for thieves. You can also plumb it to switch over from inside the cab so you can switch tanks while driving. Once you have one you’ll never want to carry gas cans again

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In the late 1990s I installed a spare tire carrier from a 68 FJ40 on the passenger side of my 76 for a Jerry can carrier. I had seen an old picture from Japan of an early BJ that was configured like this and attempted to mimic it plus add some spare parts storage. A few extra holes were unfortunately required to pull it off but has held up well and I have had no issues with it this whole time.

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In the late 1990s I installed a spare tire carrier from a 68 FJ40 on the passenger side of my 76 for a Jerry can carrier. I had seen an old picture from Japan of an early BJ that was configured like this and attempted to mimic it plus add some spare parts storage. A few extra holes were unfortunately required to pull it off but has held up well and I have had no issues with it this whole time.

View attachment 4101329
@cruiserkev did you actually source an oem front roll bar hoop an put it on the back there? Not to thread jack, but want to know more on how you did this!
 
I’ve tried 3 different ways to mount a can and what you see below is/was the best for me. Was going to drill into my pass door like everyone does, but buying a spare tire mount was the key for me. Can go with rotopax or Toyota oem j-can mount with this simple setup (last pic of one of my local Yota group member for example).

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@cruiserkev did you actually source an oem front roll bar hoop an put it on the back there? Not to thread jack, but want to know more on how you did this!
I sure did. A friend sold me his roll bar from a 78 FJ40 when he installed a Metaltech cage. The hoop bolts directly in the rear area. I carefully trimmed the brackets off of the bent sections and used notched straight tubing to connect them plus added a couple extra pins to secure it in place. Definitely not as strong as a true aftermarket roll cage but it works great with a long bikini top and keeps the kids dryer on wet adventures here in the PNW. Fits inside the hardtop and my Bestop softop too.

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Get an auxiliary tank that mounts under the bed if you have the room for it. It’s cheaper and better than carrying fuel cans. You don’t want to mount gas cans to the door or the tub, that’s a lot of weight to put on sheet metal and hinges that were not designed for it. Even the spare tire carrier would be overloaded with the additional weight of 50lbs of fuel. To do it correctly you’d need a (heavy) bumper mounted swing out carrier which is much more expensive that a second tank, and still won’t hold the same amount of fuel.

Aux tank only adds about 30lbs when empty, holds 20+ gallons as low as possible, and is invisible so won’t be a target for thieves. You can also plumb it to switch over from inside the cab so you can switch tanks while driving. Once you have one you’ll never want to carry gas cans again

View attachment 4101334
I think this is the coolest option… nice work. If you get the time to detail your install and operation…I’m watching
 
Is that a 4Plus rear swing out bumper? Also how did you mount swing down table? Cool!!!
It is a 4Plus bumper, the fold down table is bolted to the backside of the cooler carrier.

It's pretty handy sometimes.


Edit-It's the Front Runner fold down table.
 
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I have a tire and dual-can rack from (sadly not around any more) Stout Equipment. It's been in place for 30 years and I've never touched a bolt. Entirely frame mounted. On a dare I once jacked the rear of the vehicle off the ground using the back of the can rack. It would be easy to have a fabricator duplicate it.

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It is a 4Plus bumper, the fold down table is bolted to the backside of the cooler carrier. It's pretty handy sometimes. Edit-It's the Front Runner fold down table.
It is a 4Plus bumper, the fold down table is bolted to the backside of the cooler carrier. It's pretty handy sometimes. Edit-It's the Front Runner fold down table.
Is that a 4Plus rear swing out bumper? Also how did you mount swing down table? Cool!!!
 
Thanks Ryan. I also have a 4Plus rear swing out bumper on my 78 and have been looking for a way to mount a table off the back of cooler area. Can you possibly sent a picture of how you did it? Thanks. Tom
 
Thanks Ryan. I also have a 4Plus rear swing out bumper on my 78 and have been looking for a way to mount a table off the back of cooler area. Can you possibly sent a picture of how you did it? Thanks. Tom
I bought an inexpensive folding table off Amazon and mounted it on the 60 carrier I built. Looks like it’d fit the one for my 40 with minimal work. I know they aren’t 4plus but probably close.
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I think this is the coolest option… nice work. If you get the time to detail your install and operation…I’m watching
I don't think I ever went through the trouble of detailing the install. The tank is one of the many con-ferr style tanks available in the 80's, I think they all hooked up the same so I'm sure someone has done a writeup on it. I did made a few changes in the mounting. The original tanks used long bolts going through the tank and hung off the sheet metal in the bed. I didn't trust that so I welded some brackets on and mounted the tank to the frame. And because I'm ultra paranoid, I added fuel tank straps as a backup.

I did modify the way it gets filled, I gave some details in this thread. It's changed slightly but the basic premise is the same. I have an electric pump to transfer gas from the main tank to the aux tank, and I use a 6 port valve that allows me to switch between the two tanks on the fly. I'm sure if you search some of my old posts I probably posted some more pictures and info scattered around this site.

Auxiliary Fuel tank filler neck alternative - https://forum.ih8mud.com/threads/auxiliary-fuel-tank-filler-neck-alternative.1025443/
 
I sure did. A friend sold me his roll bar from a 78 FJ40 when he installed a Metaltech cage. The hoop bolts directly in the rear area. I carefully trimmed the brackets off of the bent sections and used notched straight tubing to connect them plus added a couple extra pins to secure it in place. Definitely not as strong as a true aftermarket roll cage but it works great with a long bikini top and keeps the kids dryer on wet adventures here in the PNW. Fits inside the hardtop and my Bestop softop too.

View attachment 4101489
That is what I want to do. Fitting inside a hardtop has been my biggest concern. Thanks
 
In the late 1990s I installed a spare tire carrier from a 68 FJ40 on the passenger side of my 76 for a Jerry can carrier. I had seen an old picture from Japan of an early BJ that was configured like this and attempted to mimic it plus add some spare parts storage. A few extra holes were unfortunately required to pull it off but has held up well and I have had no issues with it this whole time.

View attachment 4101329
I arrived at this solution independently of kev but really like it.

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