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34G tank in an Ext. Cab Sht. Bed

ZZebes

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ZZebes Senior Enthusiast

ZZebes

Posted
Posted

I was wondering if it is possible to squeeze a 34 gallon tank into the place of my current 26 gallon one, that extra 8 gallons would be nice to have when towing. Just wondering if this is even worth doing.

95Sierra2500 Senior Enthusiast

95Sierra2500

Posted
Posted

I can't say for sure, but you'd have to check the overall length as I believe that's where you'd run into problems. The mounting location is usually under the box with as little as possible under the cab, in which case your rear axle may be too far forward to allow a 34 gallon tank to fit.

asilverblazer Senior Enthusiast

asilverblazer

Posted
Posted

I think the 34 gallon won't fit because part that goes under the cab is thinner. The 34 gallons thinner section is too far forward, meaning it is too thick/tall to fit under the cab.

 

Willieboy: How do you know a Suburban tank will fit?

redvett Senior Enthusiast

redvett

Posted
Posted

Along with a change in tanks you will have to have a custom tune since the PCM will not be able to do the check for vapor emissions on a larger tank. The PCM does its test on the tank and requires a certain amount of time to draw a vaccum and if it does not meet the criteria it will set the SES.

pm26 Senior Enthusiast

pm26

Posted
Posted

Plus, you are incurring some serious liability if you should install a larger tank that will somehow rupture in say a minor collison and cause a fire, causing bodily injury. . You will have no legal recourse with the manufacturer as you have illegally modified the vehicle. Stay with the original tank and refuel more often.

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