Jeep

I own a 1997, jeep tj with 135k miles on her. her front tires wobble, on the y-axis, whenever i hit a bump or at 30-40mph or there is some warping of the road, or if i am making a turn at that speed for more than a few seconds.i can break the harmonics of the wobble by turning the wheel back and forth a bit or by breaking. any ideas?

Take it to n alignment shop and they will tell you what parts it needs to be alligned corectly