SoCal shake n bake
I replaced my front shocks on my 94 ZJ and all of a sudden the death wobble came out of nowhere. I would hit a little bump at 65 and I swear it felt like I had square blocks for wheels. I usually just hit the brakes firmly or quickly shifted lanes and it went away until the next little bump.
I replaced the stearing damper (shock looking thing) and all the bushings on the front sway bar, yet it continued. I just left it for about 3 months and stayed under 65, then it started to happen at lower speeds and without bumps, but little washboard areas would do it too. We have some cement portions on our freeways and they tend to dip in the middle of the slabs.
I just got a new Blackberry with a 5.1 megapixel video camera, so I laid it down in front of my Jeep as I turned the wheels back and forth. I focused on every joint and link because I kept hearing this little clunk. To my amazement, I could visibly see the play in the tracking bar ball joint. Previously, I had gotten under there and yanked and pushed on every joint in the steering assembly and did not see any play then. Short story long, I replaced the track bar ($70 at Autozone) and the clunk and the death wobble are history. It is a pretty easy job if you can turn a wrench and don't mind a little grease, the same for the sway bar bushings which really add a tight firm feel to the wheel.
ps I first bought new tires, balanced them, no help!