F100 - Relocating Fuel Tank to Rear 

I made mine serviceable by putting nut-serts in the frame and mounted the tank from the bottom

FYI : A guy might look into a 64/66 Mustang tank, guys are using them in the same way and same place in 48/ 52 F1 Fords without cutting on the frame . The earlier tanks must be narrower because the F1 frame is about 3” narrower than the 53 and up F 100’s. The early tanks might be too narrow to catch the frame on later F100/F150’s but if you’re going to build a ‘picture frame’ to support it anyways than wouldn’t be a problem. Just a thought.

I’ve got a 72 that I’m gonna do a similar build on and am watching your build for ideas and what to watch for along the way. Thanks again and stay safe!

It is looking awesome! Can’t wait to see her going down the road!!

Love this build man, keep it up 👍

Damn glad I watched until the end that thing looks amazing with the new stance

Great job on these videos. Very descriptive but not boring. Can't wait to see more!

Appreciate your response tonwheels and tires. Good job on videos

That really was a great way to end the video. It looks really great, stay motivated, and have fun. I love the look

Love your videos man. Proud to say I’m following your build really closely

Hey Man. Nice job relocating the fuel tank. I really like the way the stance is. Thanks for sharing.🍁👍👍

I’m surprised of how much knowledge you have my friend your truck look amazing

Just found your channel after getting my 77 f100 to fix up. Love it, make some more vids!

You are an inspiration! I'm getting ready to change the gas tank in my 73.

Truck coming together real nice l like that stance thanks for sharing your content plz keep coming I have enjoyed this build

Looks Amazing!!! Love the series!

Another great video from my favorite channel!

Great job man on the install - I like how you showed us step-by-step how you made everything fit nicely under the bed. The stance is awesome on the truck, wheel and tire combo look great, and this is a great build am sure am enjoying watching! I have been following since the beginning. Your hard work is paying off, and you tips are helping many! Take care man and keep up the great work!

Nice work. Looking forward to seeing how you make the fuel pump, sending unit and lines work.

Use the gas door hinge that is on a side mount gas door but use the bed metal as the gas door face.. I love this truck!

Love it man! It’s really starting to look like something haha! Once again, amazing work brotha!

Just got a ‘78 swb f100. Thanks for all the content! Sub. Here to stay

Thw stance looks really good even with the front too high. Looking good! Now lets go drive this thing!

I miss my 67, never should have sold it. Nice build

Awesome job Mr. Blueshirt!

Really awesome videos! Helping me a lot. I've got a 69 Ranger and im following right behind you.

Look great man!! I enjoy the content!! Keep them coming!!

Great job. I did the same in the 65 and 67 F100 that I restored.

The Truck is Awesome 👌

Dream build! Love it!

Make floating nut plates and weld them to your frame. Makes installing and adjusting the bumper much easier. Works great for box mount bolts also.

I’m not into trucks but I love what you’ve done to this oldie.

Super informative!!! Thank you :-)

Great job!....Have a '72, quick change rear, stock car front, 4 spd and 351 cleveland.....Going into shop in a coupla weeks for cam, TFS heads, roller rockers and lifters.......Spring time hope to put in either a 5 or 6 speed.....Keep the vids coming

Was just about to comment please paint the frame since you’ve put so much into and it was just done halfway through 😂lol love the videos badass truck !

Looking great!

Awesome job man

Nice job, nice truck

Sick custome job looking good 👍

Man nice build! Quality work very detailed vid. When I do my Ford ill try not to bother you to much lol

You mounted your tank the same way I did on my 48 F1. I made a rear cross member to help hold in the back.

Liked and subscribed!

Luv the truck bro could not have picked a better engine, one of the very few Ford's i would drive willingly.

Really like the project nice work

I love those wheels I have the same style on my car

Looks awesome! Need to get busy on my own builds! 🤦🏼‍♂️

Your F100 will be like "Fast & Furious" style!

Throw a Holley fuel mat in it and you won't have to worry about baffles. As big and flat as that tank is you can use one of their large mats and never worry about starvation.

Good job

Bought a rear tank kit from lmc for my 65 f100. Gives option to use straps or mount to frame from bottom and 17gal. Used same style of fuel pump

They make gas tank mats that keep fuel to the fuel lines for the purpose of converting older cars to fuel injection...

If having the tank hanging down like that is a concern, you might consider using a '67-'68 Mustang tank. Length & width and mounting holes are identical, but they're shallower. You'd lose some fuel capacity, but it'd allow the tank to be raised two or three inches.

We just cut the tank down and put a back cross member in and it worked and a flexible strap under the tank , there’s room on the frame rails to reset a nut for the deck normal hight

Like the men's Wear House it's genuine, "I guarantee it!".

A bronco 2 tank might of been a good choice for rear and fitment plus efi. But i get that mustang tanks are cheap easy to find and work. I still miss that sweet 390 you built!

Got it!

Nice job!!!! I don't know if this applies, but on my 64 I kept the inertia switch out of the crown vic for a fuel cut off in case of a accident!!!! 🔥😱

Just did my 66 pick-up found a 52 Chevy tank is best way to go , only had to move front little cross member 2 inches and still clears rear and it has hole for pump and cover if you don't use it,, has side fill much better to fill from side,, only had to cut 3/8 inches off bottom of frame rails,, and it won't hang down only 6 inch deep,, really takes from rear leaf spring integrity to move the rear cross member back that much,, will give you deflect and wheel hop.

Looking awesome. I have a 67 f100 (was my grandpa's) that needs a motor and I am just getting real anxious to start working on it. I have an 85 F150 with the 5.8 4V HO motor and debating on using it as a donor but would rather rebuild the original 352. Time will tell I suppose.

On the fuel tank I think I would have welded a bar in front and in back of the tank and took a measurement for tank straps and pulled the tank to the bottom side of the frame and if you want you could put straps on the bottom as well

Nice work, very methodical. My question, why did you keep those 5th wheel mounts? Would have been the first thing to test that plasma on. And do you trust the wheel spacers to take power?

Instead of square tubing, use 3/8 or 1/2 inch by 1 1/2 flat stock . Weld right in frame on sides bolt in on rear. It’ll strengthen sides where material was cut out

I really like your build, and following along, even though I don't always agree with everything you're doing. First, why are you moving the fuel tank out from behind the front seat and putting it at the rear of the truck? You can easily make a return line to the cab tank for injection by making a tubing insert with a return line connector on it, and fit it between the filler hose and the gas tank, using the filler hose and clamps to do it. Consider this....the tank being at the rear, is now subject to common garden variety rear-enders which could become catastrophic. I drove my 67' F-100 for 600,000k miles and never had a problem with the gas tank behind the seat. If you were in a wreck that could cause the cab tank to rupture...I doubt you would have to worry about it. My opinion is, your tank is a little low for my liking. My truck, until I shorten it, is a long bed with a factory 25 gallon aux fuel tank between the frame, behind the cab. The factory provided a metal skid plate for the tank. I'd think about doing the same on yours. To bring some strength back to the rear of your frame, weld in the inside of the frame, so they won't be seen... "fish plates," with holes inside of the plates for welds outside and inside the plates . You're doing great though, and you have strong problem solving skills. I'm following along with you, keep it up. :)

You can buy a Mustang tank that is baffled and set up for fuel ejection, but they are pricey. When I converted my mustang to fuel ejection I used a stock tank and the drain for the fuel return. I haven't has any problems with it not being baffled, but I don't let it get very low on fuel just in case.

Can I ask what size of tires are you running? Brand, width and offset of wheel? Bolt pattern? I bought some P315/35/R20 Tires but I am having a tough time finding 10.5" wide wheels. Thanks

Once you lower that front end, that stance will be perfect. Put that filler cap door on magnets or something, make it cleaner than hinges.

Hola muy buen proyecto Tengo un duda …qué medida de rines y llantas le pusiste incluyendo offset?

John Madden truck builder..(because of the marker) lol

Can you please give your tire and rim combo size it looks really good

Hey man! Currently doing the ls swap in my f100. I have one question and it’s what rear differential do I use for the swap? One that fits in the rear?

Awesome truck coming along, but should have kept the 390 in it. I just like keeping all Ford powerplant in this ford truck. My opinion, but I love this trucks looks👍👍

You've really done an amazing job with the transformation and fabrication work!!I can't wait to hear it run and drive...but if you blow up the engine are you going to put a Ford motor back in?? 🤠

What off set are your wheels? And how big of a wheel spacers are you using?

Any clue what the measurement is from outside of each wheel spacer? What made you go with spacers and a + offset, as opposed to just a negative offset with a deeper dish? Was it because of availability of the wheels you liked? Really appreciate the videos man, I used a lot of your guidance for my CV swap, and the 4 link is up next. Quality work man.

I did my fuel fill behind the driver side tail light used a c10 gas tank door hinge, on the 64 i mounted the switch with in the tail gate post. Hopefully shutting the tailgate won't trip it! Lol but its close if it does.

The Ranger bed bolts are better I find they are deeper in the torq bit area I also took your idea but made the rear support able to remove if you had to servive the tank I keep Ed my ford all ford I got a coyote motor out of a 2016 no LS for me

love the videos have learned alot . like your tire and wheel combo can you tell me wheel size and offset and tire size please and name of the wheels . im doing the same thing with my 1966 f100.

I have had two trucks that the tank was mounted low like that and it ended bad for both. Unless your going with a skid plate, figure on a road hazard and hole in tank. Its your truck so do what you want but mine was even with the rear end center section and got hole in it

just curious, what tires do you have on front and rear; trying to decide what to do on my 66 f100. to give more aggressive stance. thanks

How flimsy is the gas tank? I'm thinking of welding shut the fuel neck and welding the neck on one of the rear corners to fab up a fuel door behind the tail light

Awesome build, those u bolts for the bed… I can’t stand them, after a couple years they don’t wanna come off, the nut breaks free from the clip and just spins, anti seize the bolts and nuts. I live in Michigan as a collision tech, I’ve seen brand new trucks have issues trying to remove the bed.

I did exactly what you did with the same tank... except I didn't use any tubing support and I have not had any problems. I wanted as much clearance from frame edges in case the frame got tweaked in a minor accident. (a major accident and I'm probably screwed anyway). Can you tell me that the tubing frame is a real necessity after you finish? I am also using the old frame brace at the end of the frame - except I flipped it upside down.

Can you tell me what size rims and tires you running right now and offsets?

What’s the size of tire your running on the back

What backspacing on the rear wheels, and are you still using a wheel spacers

Went from a rusted frame to a fresh coat of black on it what did you use to paint it?

Gracias x poner las letras en español ✅

Hi there, what size wheels and tires are you running. I gone have the same set up.

so if you need to service your fuel pump, do you have to remove the bed?

The truck is turning out awesome!!! I've been following you for a while now and I also I'm in the process of building my 73 f100. It also has the crown vic suspension and I'm putting in a 6.0 too. My ? Is after I installed the suspension I noticed that i have a bigger wheel gap towards the door I followed ur every step and I don't know how it ended up like this, what do you think happened or what I'm I doing wrong??

Dimple the corners of the tank

What is the measurements of the 70 mustang tank I'm building a 66 ford pickup,,, l used a 66 mustang tank in my 45 dodge worked perfectly,, but there to wide for the 66 ford

You can actually use a early 70s Maverick gas tank slides in

Nice work and looking good! I see the info on the wheels but what size tires are you running?

Should have went with the Tanks Inc tank. That’s what I am using on my 63 Falcon.

What size and brand are those wheels and tires??! I love the setup! Sweet job man!

Truck looks awsome coming along nicely, you mind me asking what are the wheel specs looks like 18s how wide and the offset

What did you end up doing on fuel door?

Looks awesome whats the wheels? Are they the 19x9.5s+15s in the rear? Or did you go wider

How thick is the metal for the 1x1 box tubing ? Or does it matter ?