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Old 02-05-2018, 03:18 PM   #1
72Ken
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Join Date: Feb 2018
Location: Troy, AL
Posts: 1
Question about gas tank/sending unit replacement

Hello all. Newbie here and needing some help. I tried searching some old threads but didn't have much luck finding out what I needed, forgive me if this has been explained already. Purchased a 72 C10 years ago and shoved it in my barn. Finally getting around to tinkering on it. Truck appears to be all original with 307 2bbl and Auto trans. Ordered a new gas tank--matched up that mine has EEC, and ordered new sending unit--matched up that I need the "72 with auto trans". I install new tank and notice there is an extra hole punched in the top for a bolt (no problem). But also notice that there is not a threaded hole for the fuel line to secure to (see pics). Also the old sending unit only has one line and the new unit has 2 lines. Like I said everything seems to be original but I could be wrong. Anybody ever come across this before? Im sending the new unit back to get the "manual trans" with single line.
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Old 02-05-2018, 07:01 PM   #2
Gromit
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Join Date: Jul 2015
Location: Central Coast, CA
Posts: 498
Re: Question about gas tank/sending unit replacement

I have the 1970 with the EEC not the 1972; so please take the two year difference into account; but my tank also has just one connection at the sender.

That threaded hole you mention looks as if it was drilled into the tank itself - I mean perforating into the same space where the gas goes!

Mine doesn't have that either and I'll be surprised if that is factory.

I'm sure you know this but just a reminder when you have that sender off; beware of static electricity or other sparks near the opening.

Photo attached of 1970 tank with EEC
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