Just noticed this yesterday. What would cause a steering wheel to be misaligned with the wheels? I also had gotten death wobble the other day for the first time (twice in a day). After driving home from work I noticed the steering wheel was misaligned.
Do you have the basic RC 4" lift? Are you running the track bar drop bracket? If so, I bet it's loose causing your axle to shift when you hit bumps. It would also cause death wobble. Replace the bracket and stock track bar with a JKS track bar. Also ditch the drop pitman arm if you're running it.
Yep looks like I have the stock track bar and a drop bracket. I guess I should try tightening it up, perhaps loctite, until spring when I start upgrading.
That should help, but odds are it will keep coming loose. I ditched the drop pitman arm and replaced the track bar drop bracket and stock track bar with a JKS track bar, and it's night and day difference. If you go the JKS route, PM Kolak, he has great prices on them.
I am in the process of reading your build now, pure sexiness. Awesome fab work too.
I've heard bad things about wheel spacers, how they're unsafe, especially while wheelin', so I don't really want to run them. My next choice was to go with new wheels (16x8 with 5" backspacing). Just because it will bring the tire out a little farther, the tire is about $100 cheaper than a 17" and I have a white WJ, so in my opinion, a flat black wheel looks great with the white body.
As long as you get a quality spacer, and keep it torqued properly, they are fine. I've run a couple of different sets on a couple of different Jeeps for probably 30k+ miles without any problems. New wheels are the ideal way to go though. I only run spacers because I got a great deal on the JK moabs I run.