Originally Posted by joe_jeep
get under it. have someone steer it left to right and back many times. look for play anywhere. something is loose. also get and alignment, changing the springs and not the arms is gonna mess with angles. re-balance the tires.
What he said, I had the same issue after I installed the lift and it turned out my new front adj track bar and the bracket were slightly loose which cauaed a wobble. Make sure everything is super tight. Have a friend move the wheel back and forth an look, you will find your problem