You can either go to the Jeep website and plug in your VIN to see your build sheet online, or you can jack up your Jeep, rotate the tires and count the # of rotations your driveshaft makes (see post #25 below).
:dance:HI, most jeeps are 3.21 standard rear end, or 3.73. if u get good
mpg's you have the 3.21 if you get 14 mpg's u got the 3.73.opcorn:if it's a rubi
then the combo is 3.73 is 4.11, ru corn fused yet!:hide:.
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