mustang fuel tanks in 55-59 trucks - The 1947 - Present Chevrolet & GMC Truck Message Board Network

nikwho · 01-11-2011, 08:23 PM

I know that it is fairly common to use old mustang fuel tanks in the back of these trucks. I noticed that the 64-68 tanks are 16 gallon while the '69's are 18 gallons. Will the larger, '69 tank fit the same? i cant get sizes. Thanks, Nik

63 & 64 Bowties · 01-11-2011, 09:07 PM

The main difference is the top of the tank. The Mustangs used the top of the tanks as the trunk floors. On the older cars the top of the tank is flush with the mounting flange. The new cars, the top of the tank stuck up about an inch or more above flange level.

Tri5Nerd · 01-11-2011, 09:38 PM

I'm using the 20 gallon tank in mine, it is a bit taller on top, maybe 1.5" but since I put a notch in my frame I will have the space to sit the tank on the top of the frame, plus I wanted to reuse the LS1 internal fuel pump assembly.
The 16 gallon tank sit right on top and level with the frame rail of these trucks.

Look here, I have the tank inside the frame rails when the pictures were taken.
http://67-72chevytrucks.com/vboard/s...=371513&page=2

Tri5

nikwho · 01-20-2011, 04:48 PM

Thank you. I think that the 20 gallon, 1970 tank will sit to high. The '67-'68 tank is 16 gallons and i'm sure would work. Anyone use the 18 gallon '69 mustang tank?
http://cgi.ebay.com/ebaymotors/1969-...Q5fAccessories

nikwho · 01-20-2011, 04:49 PM

The first picture makes it look like it will fit. Then further down there are pictures of a different tank, that has the mounting flange way further down on the tank. I was hoping for the flange to be flush with the top of the tank so it can mount on the top of the frame rails. any thoughts?

56ClassicTruck · 01-21-2011, 01:04 AM

Do you no of any newer tanks that will fit with 10" deep, mustang tanks are hard to fine out here. I got a 1996 camaro tank but its not flat top and bottom.lp
Posted via Mobile Device

entourageguy · 01-21-2011, 10:34 AM

guys are getting them off ebay.

nikwho · 01-21-2011, 11:04 AM

Yeah, there are a bunch on ebay as well as a bunch of other vendors if you google it. They are pretty reasonable to ship too. Plus, they are brand new, you dont have to worry about you gas tank being clean.

skip99 · 01-21-2011, 01:23 PM

I just happened to have a 65 mustang tank for 65 fastback, and I believe it has a straighter fill neck on it.. I think the others are angled more, so the 65 style will be easier to mount a nice fill cap through the bed..
and instead of mounting it to the top of the frame, I would build a frame out of square stock and bolt the tank to the bottom , so you can remove it if necessary.. I saw a pic somewhere, I'll look for it..

found it !!

1964-1968 Ford Mustang or 1967-1968 Cougar with drain plug.

* 16 Gallon Capacity
* Fuel capacity is exactly the same as the original
* Dimensions: 32 5/8" x 24 1/2" x 8"

1969 69 Ford Mustang and Cougar fuel tank kit with drain plug, comes complete with sending unit, retaining ring, gasket and mounting hardware.Capacity: 20 gallons, Dimensions: 32-5/8" x 24-1/2" x 9"

56ClassicTruck · 01-22-2011, 01:21 AM

Quote:

Originally Posted by skip99

I just happened to have a 65 mustang tank for 65 fastback, and I believe it has a straighter fill neck on it.. I think the others are angled more, so the 65 style will be easier to mount a nice fill cap through the bed..
and instead of mounting it to the top of the frame, I would build a frame out of square stock and bolt the tank to the bottom , so you can remove it if necessary.. I saw a pic somewhere, I'll look for it..

found it !!

1964-1968 Ford Mustang or 1967-1968 Cougar with drain plug.

* 16 Gallon Capacity
* Fuel capacity is exactly the same as the original
* Dimensions: 32 5/8" x 24 1/2" x 8"

1969 69 Ford Mustang and Cougar fuel tank kit with drain plug, comes complete with sending unit, retaining ring, gasket and mounting hardware.Capacity: 20 gallons, Dimensions: 32-5/8" x 24-1/2" x 9"

hey good info on those tanks any others?
Posted via Mobile Device

Gabbyp · 01-22-2011, 12:08 PM

skip99. I went to number of gas tank web sites and all have a 65 Mustang but no mention of a Mustang fastback. All of the pictures show the 65 Mustang tanks look a like with the same dimensions and capacities. One site even had a Ford part number of the original so one would have to find out if the fastbacks part number is different.

skip99 · 01-22-2011, 06:58 PM

65 mustang tanks are all the same, sorry, I just meant I have a fastback..not just one specifically..

nikwho · 08-02-2011, 01:54 PM

what are the fuel level guage sending unit ohms for these ford tanks? 73-10 ohms?

01-11-2011, 08:23 PM	#1
nikwho Registered User Join Date: Apr 2010 Location: Flagstaff, AZ Posts: 974	mustang fuel tanks in 55-59 trucks I know that it is fairly common to use old mustang fuel tanks in the back of these trucks. I noticed that the 64-68 tanks are 16 gallon while the '69's are 18 gallons. Will the larger, '69 tank fit the same? i cant get sizes. Thanks, Nik __________________ '59 Apache - 383" SBC/TH-350 '68 GMC - BBC/TH400

01-11-2011, 09:07 PM	#2
63 & 64 Bowties and a few others Join Date: Jun 2007 Location: Blue Ridge Mountains of VA Posts: 5,638	Re: mustang fuel tanks in 55-59 trucks The main difference is the top of the tank. The Mustangs used the top of the tanks as the trunk floors. On the older cars the top of the tank is flush with the mounting flange. The new cars, the top of the tank stuck up about an inch or more above flange level. __________________ Bill US Army Vet -193rd Infantry BlueRidgeMuscleCars.com “The greatness of a nation and its moral progress can be judged by the way its animals are treated” Gandhi

01-11-2011, 09:38 PM	#3
Tri5Nerd Tripple Five Fanatic Join Date: Sep 2006 Location: USA Posts: 658	Re: mustang fuel tanks in 55-59 trucks I'm using the 20 gallon tank in mine, it is a bit taller on top, maybe 1.5" but since I put a notch in my frame I will have the space to sit the tank on the top of the frame, plus I wanted to reuse the LS1 internal fuel pump assembly. The 16 gallon tank sit right on top and level with the frame rail of these trucks. Look here, I have the tank inside the frame rails when the pictures were taken. http://67-72chevytrucks.com/vboard/s...=371513&page=2 Tri5 __________________ 1955 Chevy Stepside/LS1 drive train http://67-72chevytrucks.com/vboard/s...d.php?t=371513

01-20-2011, 04:48 PM	#4
nikwho Registered User Join Date: Apr 2010 Location: Flagstaff, AZ Posts: 974	Re: mustang fuel tanks in 55-59 trucks Thank you. I think that the 20 gallon, 1970 tank will sit to high. The '67-'68 tank is 16 gallons and i'm sure would work. Anyone use the 18 gallon '69 mustang tank? http://cgi.ebay.com/ebaymotors/1969-...Q5fAccessories __________________ '59 Apache - 383" SBC/TH-350 '68 GMC - BBC/TH400

01-20-2011, 04:49 PM	#5
nikwho Registered User Join Date: Apr 2010 Location: Flagstaff, AZ Posts: 974	Re: mustang fuel tanks in 55-59 trucks The first picture makes it look like it will fit. Then further down there are pictures of a different tank, that has the mounting flange way further down on the tank. I was hoping for the flange to be flush with the top of the tank so it can mount on the top of the frame rails. any thoughts? __________________ '59 Apache - 383" SBC/TH-350 '68 GMC - BBC/TH400

01-21-2011, 01:04 AM	#6
56ClassicTruck Registered User Join Date: Oct 2008 Location: SW,WA Posts: 202	Re: mustang fuel tanks in 55-59 trucks Do you no of any newer tanks that will fit with 10" deep, mustang tanks are hard to fine out here. I got a 1996 camaro tank but its not flat top and bottom.lp Posted via Mobile Device __________________ 1996 Dodge 3500 4x4 1977 F250 Camper specal 4x4 1956 Chevy 3100 truck

01-21-2011, 10:34 AM	#7
entourageguy Yellow truck club Join Date: Apr 2006 Location: Barrie Ontario Posts: 2,080	Re: mustang fuel tanks in 55-59 trucks guys are getting them off ebay. __________________ ................................................................ Brian ...... My hub garage address http://www.hubgarage.com/mygarage/59apache I gue$$ everything has it'$ price ALL GONE NOW *59 Chev Apache* *PRAISE THE LOWERED* 350 700r lokar shifter power MII front end, shockwaves tilt, 4 wheel discs 4-link and bags 10 bolt limited

01-21-2011, 11:04 AM	#8
nikwho Registered User Join Date: Apr 2010 Location: Flagstaff, AZ Posts: 974	Re: mustang fuel tanks in 55-59 trucks Yeah, there are a bunch on ebay as well as a bunch of other vendors if you google it. They are pretty reasonable to ship too. Plus, they are brand new, you dont have to worry about you gas tank being clean. __________________ '59 Apache - 383" SBC/TH-350 '68 GMC - BBC/TH400

01-21-2011, 01:23 PM	#9
skip99 Registered User Join Date: Oct 2010 Location: mt vernon, oh Posts: 868	Re: mustang fuel tanks in 55-59 trucks I just happened to have a 65 mustang tank for 65 fastback, and I believe it has a straighter fill neck on it.. I think the others are angled more, so the 65 style will be easier to mount a nice fill cap through the bed.. and instead of mounting it to the top of the frame, I would build a frame out of square stock and bolt the tank to the bottom , so you can remove it if necessary.. I saw a pic somewhere, I'll look for it.. found it !! 1964-1968 Ford Mustang or 1967-1968 Cougar with drain plug. * 16 Gallon Capacity * Fuel capacity is exactly the same as the original * Dimensions: 32 5/8" x 24 1/2" x 8" 1969 69 Ford Mustang and Cougar fuel tank kit with drain plug, comes complete with sending unit, retaining ring, gasket and mounting hardware.Capacity: 20 gallons, Dimensions: 32-5/8" x 24-1/2" x 9" Last edited by skip99; 01-21-2011 at 01:39 PM.

01-22-2011, 12:08 PM	#11
Gabbyp Registered User Join Date: Mar 2010 Location: Salisbury North Carolina Posts: 23	Re: mustang fuel tanks in 55-59 trucks skip99. I went to number of gas tank web sites and all have a 65 Mustang but no mention of a Mustang fastback. All of the pictures show the 65 Mustang tanks look a like with the same dimensions and capacities. One site even had a Ford part number of the original so one would have to find out if the fastbacks part number is different.

01-22-2011, 06:58 PM	#12
skip99 Registered User Join Date: Oct 2010 Location: mt vernon, oh Posts: 868	Re: mustang fuel tanks in 55-59 trucks 65 mustang tanks are all the same, sorry, I just meant I have a fastback..not just one specifically.. Last edited by skip99; 01-22-2011 at 06:59 PM.

08-02-2011, 01:54 PM	#13
nikwho Registered User Join Date: Apr 2010 Location: Flagstaff, AZ Posts: 974	Re: mustang fuel tanks in 55-59 trucks what are the fuel level guage sending unit ohms for these ford tanks? 73-10 ohms? __________________ '59 Apache - 383" SBC/TH-350 '68 GMC - BBC/TH400



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