The difference between a 186k mile steering gear and a 15k mile steering gear is far more than I expected it to be. I knew there was a small dead spot, but I didn't expect it to have the negative effects it created compared to a tight box. I haven't made it above 40mph yet, but immediately I can tell the the Jeep doesn't follow the ruts in the road nearly as forcefully as it has been. Really, hardly at all. The other, more unexpected, observation was while driving through a very uneven, undulating alleyway. I was far more aware of the road and it's ups and downs. Everything feels more precise, where I am no longer making the same continual small steering adjustments. Hard fast cornering feels much better and even more fun!
My drive out to Moab tomorrow should be all the better. Thanks to Blaine for pulling this out of his parts pile!