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  #1  
Old June 20th, 2021, 06:29 AM
DanT DanT is offline
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Default 1966 GMC suburban fuel tank

What are people using for a new replacement fuel tank on their 66 GMC Suburban's? Any New information out there?
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Old June 21st, 2021, 12:16 AM
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Funky61 Funky61 is offline
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Default Re: 1966 GMC suburban fuel tank

Hello DanT;
if you have to retain the spare cut out, then you will have to source a used one. If not my research shows a 69-72 Blazer tank being a close fit.
After those two options you're looking at custom built units.
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Old June 21st, 2021, 04:22 AM
DanT DanT is offline
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Default Re: 1966 GMC suburban fuel tank

Thanks, I just keep hoping someone will come up with replacements soon. I can have a tank fabricated as I do have my old leaking one for a pattern.
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Old June 21st, 2021, 03:08 PM
goodpal goodpal is offline
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Default Re: 1966 GMC suburban fuel tank

Have you looked at LMC Truck? They will not sell a direct 1:1 for a suburban but do sell newly manufactured tanks for C/K trucks meant to replace the behind the seat tank with an under-bed tank. if you match your Suburban's frame dimensions to the right C/K frame I assume you could use one of those. They also sell newly manufactured tanks for Blazers which were previously mentioned as being a close match.

I posted below a link below from the GM Heritage website that might be helpful regarding chassis similarities. I believe you want a C for 2wd and a K for 4wd but don't quote me on that...

https://www.gmheritagecenter.com/doc...olet-Truck.pdf
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Old October 24th, 2021, 08:57 PM
DanT DanT is offline
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Default Re: 1966 GMC suburban fuel tank

Spent a full day flushing and flushing my original tank, had to solder shut three thin spots, used a gas tank sealer kit and installed a new fuel sender. Refinished the exterior of the tank and will be able to use my original.
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Old October 25th, 2021, 01:38 AM
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Default Re: 1966 GMC suburban fuel tank

That's great DanT;

do you have a part number for the sending unit?
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Old October 25th, 2021, 03:50 PM
rsrose rsrose is offline
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Default Re: 1966 GMC suburban fuel tank

I have a leaky behind-the-seat gas tank in my 1962 305D. I'm saving that job until I return to Tucson, AZ in February. I do not know where the leak is and do not have all the tools that may be needed to fix the old one. My tools were lost in a mini-storage fiasco. Could be cheaper and better to buy a replacement gas tank as my sender unit is relatively new. But, does anyone know how many straps hold on the 1962 305D gas tank. It's either 2 or 3 straps. I ask because I have to visualize the number being out of the country. Don't want to buy anything online until I know the number of straps.
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Old October 25th, 2021, 04:53 PM
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Default Re: 1966 GMC suburban fuel tank

My 62 had two straps
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