4.5 rc lift, stock steering, new ball joints about 2 months old. New tre about a month old. No sway bar. Havnt ran a sway bar for about a year and never had a problem. The jeep dances between the lines. Bouncing back and fourth from line to line. Got an alignment after the tre were installed. Drove straight for a while now its back to dancing again.

What do you guys think it could possibly be?

 

I would make sure that everything is tight on the front end. A loose part could have knocked it out of alignment.

 

I agree. Sounds like bump steer- considering your situation, something must not have been tightened properly and you are no longer in alignment.

If everything is tight/in good condition, You should have a tiny bit of toe in, your castor should be between 4-6 degrees and your draglink/tracbar should be as close to parallel as possible. Also check your lugnuts to see if they are torqued down (have seen/heard this a surprising amount of times)

 

I do know I need a new track bar to slide my axle back over. I'm going to go over everything up front and go get another alignment this weekend.