Thanks. Great post. I did this many,many years ago on Volvos. the second time I did it I adjusted too far and had problems with steering not centring after a turn. I fixed it by going back to the starting point, and adjusting a little bit at a time, until steering wander was corrected, and steering would return to centre after a turn.From the front of your Jeep look down beside your right driver side radiator hose.You will then see the steering box.The allen screw in the middle of the center nut is where you adjust it.If you over adjust, your steering wheel will not return to center and wear out the box. There are videos on youtube explaining how to adjust a steering box.I accessed mine using socket extensions without having to remove anything.
It's important to note the starting point.