47-55.1 49 rear gastank options?

[fine69]

I remember reading that you can put a rear mounted gas tank out of a 69 Camaro into the 47-52 truck frame in the rear?
Anyone done it?

[mr48chev]

A Camaro tank is right at 39.375 wide. That according to these measurements

Fuel Tank Length (in.):
39.375 in.
Fuel Tank Width (in.):
20.875 in.
Fuel Tank Height (in.):
7.750 in.
https://www.summitracing.com/parts/t.../1969#overview

As many times as I have measured the frames I don't remember the inside measurements off the top of my head.

I can't actually read them off the image I saved off the assembly manual either.

[MiraclePieCo]

Here is the Gen 1 Camaro tank installed in my '51 half-ton frame:

[fine69]

Thank you so much!

[PDW HOTRODS]

I have done it too. I cut the filler neck and had it come up in the bed floor. You can get fuel hose from Summit Racing at the angle you need. This is what I used.

https://www.summitracing.com/parts/TNK-NE-60
Tanks Inc. Fuel Tank Filler Neck Hoses. TNK-NE-60

https://www.summitracing.com/parts/TNK-FN-FMC
Tanks Inc. Fuel Filler Neck and Cap Kits TNK-FN-FMC

[youngrodder]

I used a Camaro tank in my 1/2 ton Suburban. I also modified the filler neck to come up straight thru the rear floor. Worked great.

Marc

[fine69]

Thanks for all your help. Quick responses helped me snag a brand new Camaro tank on FB marketplace. New sending unit installed already. Tank straps too.
$95 and super local.

[rustycars63]

any one done a rear fill with camaro gas tank with pictures 1949 chevy truck 3100

[e015475]

Here's a gen 2 Camaro tank in a '49 GMC - I run a roll pan and no bumper with the filler neck under the license plate. There's a 4"x4" .25" wall square tube at the end of the rear frame rail to protect the tank

The tank is for the Camaro with a big block, which has a vent/return that I used for my fuel injection return

Here's the tank installed before the bed wood went in. There's enough room on either side to run the exhaust if you want to go out the back



Here's a shot of the tank from the underside of the truck with the bed-wood installed


Here's a shot of the rear of the truck so you can see how the tank tucks up to be flush with the roll pan - you can see a little bit of the tank, but this photo is taken at the level of the license plate. You can also see about 1/4" of the 4x4" crossmember. Neither one is visible with the truck on the ground

[e015475]

Correction - I think there's only one Gen 2 tank for the Camaro - the extra vent comes with the fuel sender for the big block

[mr48chev]

How well does that filler neck being that low work with filling the tank though? It looks like you have modified the neck to get the filler lower and that may cause some real issues filling the tank.

[youngrodder]

Originally Posted by mr48chev

How well does that filler neck being that low work with filling the tank though? It looks like you have modified the neck to get the filler lower and that may cause some real issues filling the tank.

I had a similar set up on the fill neck of my last build. Same location actually. No issues at all filling it. I would assume looking at how well built this truck is he didn't over look that detail.

Marc

[e015475]

The filler neck on my tank is unmodified - there's never been a problem filling the tank.

The problem is that I'm 67 years old now, and the truck is fairly low. I used to be able to squat/bend down pretty easily, but now it is just easier to go down on one knee to fill it

[MiraclePieCo]

Originally Posted by youngrodder

Attachment 2148751

I used a Camaro tank in my 1/2 ton Suburban. I also modified the filler neck to come up straight thru the rear floor. Worked great.

Marc

I kinda did the same thing Marc, but with a hinged door for filler access.

[mr48chev]

Originally Posted by e015475

The filler neck on my tank is unmodified - there's never been a problem filling the tank.

The problem is that I'm 67 years old now, and the truck is fairly low. I used to be able to squat/bend down pretty easily, but now it is just easier to go down on one knee to fill it

It just looked really low., I resemble that not being able to squat down thing just having turned 75 a week ago. I've got a F150 tank that I took off a truck that I snagged a nine inch rear end out of that I keep eyeballing as it has a filler neck that runs to the driver's side. I'd have to put a gas door in the fender or just do a bit of work to move the spot around the filler neck on a cab to the fender and make a stock looking fender mount filler out of it. Like on a 40 Ford, if it looks like it was there in the first place no one notices.

[dsraven]

I have seen a few modified to accept a filler on the rear fender. some nicely done, some farm/work truck look, some race car look with the bolt on flange around the outside, some that look like the stock cab filler except on the rear fender to look period correct. some have a door, some don't. the door ones are harder to get looking and fitting nice on an egg shaped surface. personal preference. personally I wouldn't put the filler in the box floor because I haul stuff. of course I would need to fill when there is something in the box, lol. also, the box floor sometimes means the filler hose needs to drag across the paint.
I remember as a kid at the filling station we had a guy with a 67-72 era chevy pick up and he had a rear tank with the filler behind the lic plate. when we seen it coming we would always try to get the other guy to run out and fill it up because it almost always burped back and got gas on the ground or your shoes. maybe some of the newer tanks have the anti siphon/roll over protection valve installed at the tank entrance of the tank? sometimes they are built into the tank filler hose and sometimes they are built right into the fill connection of the tank.

[dsraven]

I have seen a truck on here somewhere that utilised the bed stake pocket for a gas filler. the filler is up high so no chance of leaking or blowing back. it may fill slow though since the piping couldn't be very large.
has anybody used an S10 blazer tank? they have a side filler. just curious.

[jwhotrod]

for the life of me i dont understand the fascination with putting the filler in the bed floor. a friend had that setup in a 46 Chevy truck and everything in the box stunk of gas fumes each time it was filled. i would do everything in my power not to do that.

Also a 67-70 mustang tank will also slide right into the frame rails.

Just an opinion, thats all.

[youngrodder]

Originally Posted by jwhotrod

for the life of me i dont understand the fascination with putting the filler in the bed floor. a friend had that setup in a 46 Chevy truck and everything in the box stunk of gas fumes each time it was filled. i would do everything in my power not to do that.

Also a 67-70 mustang tank will also slide right into the frame rails.

Just an opinion, thats all.

Sounds like your friend had other issues. Was it not vented correctly? My fill spout comes up inside the back of the Suburban. Myself nor none of my passengers has ever commented on selling fumes. I do have the tank vented under the floor tho. By these same principles these AD trucks came with gas behind the bench seat. Anywhere would have to be better than that location (if you can help it).

Marc

[dsraven]

youngrodder, your filler is capped under the floor with an access door to the filler, correct? like a fuel fill door on the side of the vehicle on newer cars? that way the cap could vent or overflow a bit when filling but the fumes/gas would escape outside the cab? some bed floor fillers I have seen are like that and some are a filler tube coming through the floor with a simple cap at the bed floor level. some guys use a marine fuel tank filler as they are usually chromed or are finished nicely. they usually have a little chain or something inside the filler tube to keep the cap from getting lost as well. some also have the extra tube for the fill vent. some are flat with a special key to open, some are locking, some have a flip up lever to twist it open. they would look equally nice on a fender mount, an under floor mount or in the bed floor if thats what you are after. some marine places also sell the aesthetically pleasing access doors as well.

[youngrodder]

Originally Posted by dsraven

youngrodder, your filler is capped under the floor with an access door to the filler, correct? like a fuel fill door on the side of the vehicle on newer cars? that way the cap could vent or overflow a bit when filling but the fumes/gas would escape outside the cab? some bed floor fillers I have seen are like that and some are a filler tube coming through the floor with a simple cap at the bed floor level. some guys use a marine fuel tank filler as they are usually chromed or are finished nicely. they usually have a little chain or something inside the filler tube to keep the cap from getting lost as well. some also have the extra tube for the fill vent. some are flat with a special key to open, some are locking, some have a flip up lever to twist it open. they would look equally nice on a fender mount, an under floor mount or in the bed floor if thats what you are after. some marine places also sell the aesthetically pleasing access doors as well.

No, the cap is inside the cabin. You can see my set up above. I don't have a tray to catch fuel. I used a paper towel around the fill spout as to catch any fuel spray. My vent is attached the the tank itself, all of which is under the floor.

Marc

[SFFD103]

I have a 67’ Tanks Inc. Mustang fuel tank in between my frame rails of my 54’. Truck is still in the build process.

[MiraclePieCo]

Originally Posted by jwhotrod

for the life of me i dont understand the fascination with putting the filler in the bed floor. a friend had that setup in a 46 Chevy truck and everything in the box stunk of gas fumes each time it was filled. i would do everything in my power not to do that.

In my case only the access door is in the bed floor. The tank filler neck itself is under the floor. Fumes have no access to the bed or the interior.

Maybe your friend was sloppy with the gas nozzle.

[MiraclePieCo]

Originally Posted by SFFD103

I have a 67’ Tanks Inc. Mustang fuel tank in between my frame rails of my 54’. Truck is still in the build process.

Haha, the OP said 47-52 truck frame - there's not much left on that rear frame that is 47-52! ;-)

[SFFD103]

Originally Posted by MiraclePieCo

Haha, the OP said 47-52 truck frame - there's not much left on that rear frame that is 47-52! ;-)

You’re right about a lot of modifications but it truly is a 53’ truck frame that has a C notch in the rear and Mustang II up front.