Should all be 20 gallon tanks in a 95. Jeep sold the 20 gallon tank as an option but only used one tank weather you wanted the 15 or 20 gallon option. They just made the breather hose longer in the 15 gallon tanks so it would shut the pump off at 15 gallons instead of 20 gallon. Search yj gas tank conversion in google and you will find out how to make it a 20 gallon tank for sure!
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