35s and 3.21
#21
JK Enthusiast
Join Date: Apr 2014
Location: Alameda, CA
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Why. Because a stock tire size and diff ratio give a certain driving feel. If you increase the tire size then to keep this feel you need to change the diff ratio also. If you then have a different use for the jeep you may as well change in the direction that will help with this also at the same time.