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Old 01-21-2014, 11:56 AM   #18
GASoline71
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Join Date: Sep 2007
Location: Whidbey Island, Washington
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Re: Factory underbed fuel tank?

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Originally Posted by SS Tim View Post
Gary, Your truck probably had a pair of in-bed tanks. Most of the aftermarket saddle tanks used side doors (including the GM accessory saddle tanks) or wheel well fillers. The really high through bed fillers are usually only seen with in-bed tanks. But the GM NL2 and earlier N18 aux tanks did use a similar left side only with a vent pipe style filler.
Thanks Tim! I thought mine did have the in bed tanks. But there are also 2 huge round holes in the front corners of the floor of the bed as well. They are directly under the holes in the bedsides. With more holes where there were carriage bolts in the bed floor as well. From what I figured were the bolts for the brackets that held the tanks underneath the bed.

I can snap some pics of them later on today for you to check out if you'd like.

Gary
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My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread.

The Rebuild of Creeping Death after the wreck

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Remember Murphys 2nd law of mechanical relationships... "OPPOSING COMPONENTS ATTEMPTING TO OCCUPY THE SAME SPACE, AT THE SAME TIME, GENERALLY END UP OCCUPYING ADJOINING SPACE AT THE BOTTOM OF THE OIL PAN"
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