I got an issue with a violent vibration in the front end at about 45-55 mph. Starts out as a wiggle, then gets worse until I get to about 55. then smooth.

I have done

Tire rotation no change
pull r front and replace with spare no change
pull l front and replace with spare no change

I pulled both tires and got under the jeep on stands and can't find anything loose.

I thought about pulling the front drive shaft to see if it is u-joint related.

Any thoughts?

03 TJ 5 Speed I-6 30X9.50 BFG KO's