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08-27-2023, 12:52 PM
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#2 |
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Registered User
Join Date: Jul 2023
Location: Casper, WY
Posts: 11
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Re: fuel return line in-cab tank 72 gmc
My 72 has a factory return line. You can look behind the seat on the sending unit to see if there are one or two lines. If there is one, then no return line. If two, the larger one is the fuel line and the smaller one is the return.
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