Better approach/departing angles, room for bigger tires and more room to flex, less body to get hung up on rocks, stumps, trees, etc. Those are 4 good reasons. Here are a couple of other conveniences as well: Easier to clean the undercarriage with pressure hose, easier to work on your jeep, that is if you have the 3".
Are you thinking of doing one or just trying to be funny?
91 YJ, 4 banger, 3" Rough Country, 3" body lift, 31X10.5 BFG KO's on 15X10 bajas, K&N, restrictor removed.
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