Author Topic: Fuel Sending Unit Outlet Size? 3/8" or 5/16"  (Read 1416 times)

Offline dave73chally

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Fuel Sending Unit Outlet Size? 3/8" or 5/16"
« on: August 28, 2013 - 11:50:14 AM »
Buying a new Spectra gas tank from Rock Auto for my 73 challenger, item #CR8D. The item description doesn't mention the outlet opening for the fuel sending unit. They have a 3/8" and 5/16" sending unit available, do you know which one will fit?
73 Challenger
512 / 4spd / Hotchkis & QA1 Suspension




Offline anlauto

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Re: Fuel Sending Unit Outlet Size? 3/8" or 5/16"
« Reply #1 on: August 28, 2013 - 12:25:15 PM »
Your car came equipped with a 5/16 sending unit. Either size will fit in the new tank. A sending unit is usually not included with the new tank.
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Offline FJ5_440

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Re: Fuel Sending Unit Outlet Size? 3/8" or 5/16"
« Reply #2 on: August 28, 2013 - 01:52:26 PM »
Make sure you hang on to the retainer ring when you take out the old sending unit.  I have had leaking problems with the repro ones and they went away as soon as I used the OEM retaining ring.
** Shane **