I can't believe that you don't know about Death Wobble. It's been a thing for 40+ years and predominately a Jeep thing. This one isn't you man and isn't out of left field. The tolerance on Jeep steering angles are extremely tight. The tires are kind of an obvious (my 14' is doing it bad right now) but a lot of times, especially with you lifted Jeep, It comes down to Caster angle, and having the proper pitman arm to keep the drag link as flat as possible. I hope you found matching tires.. I can't as mine are discontinued. I've got to buy all 5.