I just got a YJ a few weeks ago. The steering wheel was tight just off the center. In other words, when I turned the wheel to the left or right it was tough to move for the first few inches, then it was fine. It also had a bit of a squeak when I turned it, but if I pushed forward as I turned, no squeak.
I gave the universals on the column (open the hood, the steering column is in three sections. you can see two universals joints) a good blast with PB penetrating oil, and just a quick shot in the space between the steering wheel and the signal arm. No more sticky wheel, and the squeak is gone.