Might also look at the track bar. I know from my Jeep days the track bar was a very common cause of death wobble. I was always from the school of thought that said the steering stabilizer didn't actually fix, but merely mask issues such as dw.
Spoken like a true Jeeper. I'm going to assume Solid Front Axle. Check the entire steering system and make sure you're not running an adjustable track bar with a drop pitman arm. Also make sure the drag link and said track bar are parallel. Steering Stabilizers are very overrated.
The lift kit may be causing it, but there are ways to beat DW and keep the lift.
EDIT: Just did my research, it's IFS. Can't help you there. Only dealt with SFA.