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Old 04-01-2023, 08:40 PM   #1
Jeff1971
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Join Date: Dec 2018
Location: Weiser Idaho
Posts: 68
Gas tank locking ring size

I'm trying to add a return line to my 71 gmc in cab tank. It currently has one outlet tube. Looking at the 72 sending unit, it has a return already built in. Can I just put the 72 sending unit in the 71 tank and have it fit?

The whole reason for this is a possible Holley Sniper upgrade.

No vendor specs out the dimensions???

Thanks

Jeff
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Old 04-01-2023, 09:13 PM   #2
Jeff1971
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Join Date: Dec 2018
Location: Weiser Idaho
Posts: 68
Re: Gas tank locking ring size

Finally found an old post from GMCPaul that said you can use a 72 on a 71.

Ill just keep the EEC stock setup.

Jeff
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Old 04-02-2023, 11:17 AM   #3
68 P.O.S.
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Location: Puyallup, WA
Posts: 1,662
Re: Gas tank locking ring size

Yes, the 72 sending unit will fit fine. If it's in your budget, Holley offers a underbed tank made just for the Sniper system.
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Old 04-04-2023, 10:39 AM   #4
HoneyBeeMan68
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Join Date: Mar 2022
Location: Northern, Iowa
Posts: 53
Re: Gas tank locking ring size

not trying to highjack, but what about a 68 tank? my blueprint motor is coming with it.

Last edited by HoneyBeeMan68; 04-04-2023 at 10:54 AM.
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