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Author Topic: 1978 GMC dual tank setup?  (Read 2917 times)

Offline Kobets

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1978 GMC dual tank setup?
« on: January 12, 2015, 03:22:30 pm »
Just bought a 1978 GMC Sierra it originally had dual fuel tanks and someone in its past life eliminated one tank. I have an extra tank but I am not sure how to how to set it back up. Does anyone have any advice or info on what or how to do this? Any info would be helpful thank you.
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1978 GMC Serria 1/2Ton K10, 350ci w/ turbo 350 & np203 Tcase

Offline srozell

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Re: 1978 GMC dual tank setup?
« Reply #1 on: January 12, 2015, 03:59:24 pm »
I just found the following post and I really like it.

http://forum.73-87chevytrucks.com/smforum/index.php?topic=29760.msg248977#msg248977

Hopefully it helps.
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1980 K20 "Camper Special"
1969 K20 Step Side
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Offline Kobets

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Re: 1978 GMC dual tank setup?
« Reply #2 on: January 12, 2015, 06:24:13 pm »
Thanks srozell that's a good alternative if I can not find the right parts, I appreciate your input. I am really interested in putting it stock though. But I will definitely keep that in mind. Thanx again.
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1978 GMC Serria 1/2Ton K10, 350ci w/ turbo 350 & np203 Tcase

Online VileZambonie

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Re: 1978 GMC dual tank setup?
« Reply #3 on: January 12, 2015, 06:35:52 pm »
Use this for reference http://forum.73-87chevytrucks.com/smforum/index.php?topic=9072.0

Pick up a tank switching valve and switch with bezel. Follow the wiring diagram and route the hoses correctly.
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Offline Kobets

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Re: 1978 GMC dual tank setup?
« Reply #4 on: January 12, 2015, 07:49:30 pm »
Thanks VileZambonie that may be a big help!😃
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1978 GMC Serria 1/2Ton K10, 350ci w/ turbo 350 & np203 Tcase
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