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Quick question on a gas tank



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Old 01-29-2010, 12:52 PM   #1
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Quick question on a gas tank

What is the biggest gas tank that can be swapped in between the rails of an 84 k10? A blazer is either 25 or 31 correct? Has anyone done this swap before and knows some pointers?
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Old 01-29-2010, 01:24 PM   #2
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suburbans had 34 gallon i believe, may require some brkt fabbing
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Old 01-29-2010, 04:10 PM   #3
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I looked into it. I felt that the tank would hang down too low and that there would be too much in dealing with rerouting lines. I'm presently upgrading from 16 to 20 gallon dual tanks. On a long bed, it is a direct swap, adds 8 more gallons and is plug and play.

NOTE: 20 Gallons will not work on a short bed.
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Old 01-29-2010, 05:22 PM   #4
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Talking

hell put it in the bed and have as many tanks as big as you want
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Old 01-29-2010, 05:43 PM   #5
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As far as capacity of the tanks, I'm not sure. But a Suburban tank won't fit on a Blazer.

I currently '89 Blazer, and the fuel tank from a '91 Burban. I really wanted to use the Burb tank because of it's size AND it has a nice thick skid plate. But there is no way it will fit without moving a crossmember. I would have to move the one in front of the tank forwards.

It is about 6 inches longer, and I don't think the amount of work involved with making it fit would be worth the results. So I have a Jerry can for long trips.

Oh yeah, anyone want to buy a fuel tank/skidplate for a TBI Suburban?
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Old 01-29-2010, 07:10 PM   #6
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I did it on my truck. First time was with a small tank out of a suburban (same as blazer) with some homemade mounts. It hung down too low and caught some rocks. Second time I redid it using a blazer tank and used the factory blazer mounts. The rear mount was almost a bolt in and the front mount went in pretty easy, just had to drill some holes in the frame. I also had to move the brake line mount. To get the filler neck to go over the frame and clear the bed I lifted the body 2". You might be able to do some sheet metal mods to make it work without it; I was wanting a little more lift anyway. I ran the filler and vent lines along the outside of the frame to the stock filler. The tank sits up pretty good (about blazer height) and I havent had any issues with it hitting.

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