07 Silverado new body gas tank change - GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat


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Old 06-13-2018, 04:39 PM   #1  
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Default 07 Silverado new body gas tank change

I have a half ton 07 Silverado new body with a 26 gallon gas tank in it. I recently did some digging and it looks like its not expensive to buy a 34 gallon tank and was interested in putting a larger tank underneath. I like the idea of putting the 34 gallon in like the 3/4 tons have but not apposed to go bigger. Has anyone done this or looked in to this to see whats involved or if it can or cannot be done?
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Old 06-13-2018, 06:42 PM   #2  
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Looking around it appears that if you have an extended cab or larger and/or a 6.5' or larger bed you might have factory options available to do this.
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Old 06-13-2018, 11:42 PM   #3  
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It'* a crew cab with the 5.5 short bed
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Old 06-14-2018, 02:16 AM   #4  
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Originally Posted by Tony.Tabler View Post
It'* a crew cab with the 5.5 short bed
From what I saw out there probably not, at least in a "factory parts bin" sense. Could be worth a look though, maybe it would fit partly under the cab . . . ?
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Old 06-14-2018, 05:20 PM   #5  
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I want to take the 26 out. Put 34 in. The 3/4 ton has it. What would be the difference.
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Old 06-15-2018, 12:37 AM   #6  
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Frame rails might have different dimensions, and perhaps different things are mounted there. I'd suggest crawling under one while yours is next to it and compare. Bring a measuring tape.
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