I know what it is (maybe), caster angle, too short of shocks and too short of sway bar links. I am waiting, 5 days now, for LCA relocation brackets, longer shocks and sway bar links to arrive. I have already eliminated the usual suspects, unit bearings, suspension links etc.Did you recently install wheels and tires? Out of balance will cause the wobbles, suspension components not torqued to specs, stock star washers that hold the rotors on will also cause the wobbles. I had new tires installed and I got the wobbles really bad. Took it to another store and found out the 1st one did a terrible job of balancing the new tires. Cleared it right up.Saturday I took mine for an alignment. Everything is good. So I am ordering more parts... death wobble is fun!
If that doesnt work I will be buying adjustable ball joints. Thus far I feel the JKU is way more susceptible to 'issues' than other jeeps I have owned.