55.2-59 55-59 fuel gauge with mustang tank - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jeffs56 · 02-07-2021, 12:37 AM

Hey guys I’m building my 56 Chevy truck and I’m using the stock gauge cluster. I’m using a 69 Ford Mustang fuel tank. What do I need to do to make my fuel gauge read correctly? Thank you

cmayna · 02-07-2021, 12:09 PM

The goal as far as I'm concerned is to make sure the gauge reads most accurately at low levels. Thus if possible, fill the tank 1/4 full. 4 gal for a 16 gal tank, 5 gal for a 20 gal tank. Per the following pic, if it reads too high you bend the float arm B upward at the elbow C, which causes arm A to pivot downward. Little tweaks at a time.

Now if you only lived near me, I could tweak your sending unit using the above setup, without putting any gas in the tank. Yes, I use to restore M00stangs.

sack54 · 02-12-2021, 05:07 PM

This is what you need ,this will fix miss matched ohms from sender which is 90 ohms full. Gauge is 30 ohms. full
https://www.speedwaymotors.com/Speed...ule,66534.html

mr48chev · 02-13-2021, 04:41 AM

That unit from Speedway may be a good investment in that the 69 Mustang has a 10 to 78 ohm sending unit according to this 69 Mustang group page. http://1969stang.com/forum/index.php...uge-do-i-need/

I've got a 74 F 150 tank I am thinking about using in my 48 and that unit would really help on it.

02-07-2021, 12:37 AM	#1
jeffs56 Registered User Join Date: May 2015 Location: Bakersfield California Posts: 301	55-59 fuel gauge with mustang tank Hey guys I’m building my 56 Chevy truck and I’m using the stock gauge cluster. I’m using a 69 Ford Mustang fuel tank. What do I need to do to make my fuel gauge read correctly? Thank you

02-07-2021, 12:09 PM	#2
cmayna Registered User Join Date: Oct 2018 Location: Menlo Park, CA Posts: 90	Re: 55-59 fuel gauge with mustang tank The goal as far as I'm concerned is to make sure the gauge reads most accurately at low levels. Thus if possible, fill the tank 1/4 full. 4 gal for a 16 gal tank, 5 gal for a 20 gal tank. Per the following pic, if it reads too high you bend the float arm B upward at the elbow C, which causes arm A to pivot downward. Little tweaks at a time. Now if you only lived near me, I could tweak your sending unit using the above setup, without putting any gas in the tank. Yes, I use to restore M00stangs. __________________ Craig My truck '50 Chevy 3100-5 window If I'm not working on my truck, I'm fishing with the wife or smoking Salmon.

02-12-2021, 05:07 PM	#3
sack54 Registered User Join Date: Dec 2017 Location: Londonderry NH. Posts: 138	Re: 55-59 fuel gauge with mustang tank This is what you need ,this will fix miss matched ohms from sender which is 90 ohms full. Gauge is 30 ohms. full https://www.speedwaymotors.com/Speed...ule,66534.html

02-13-2021, 04:41 AM	#4
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,287	Re: 55-59 fuel gauge with mustang tank That unit from Speedway may be a good investment in that the 69 Mustang has a 10 to 78 ohm sending unit according to this 69 Mustang group page. http://1969stang.com/forum/index.php...uge-do-i-need/ I've got a 74 F 150 tank I am thinking about using in my 48 and that unit would really help on it. __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.



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