Check your steering shaft for play. It is the shaft that goes between the gearbox and the column input on the drivers side. Shouldn't move very much by hand.
Next, jack up front passenger tire, then front driver tire, and check for movement of the wheel bearing. Grab the top and bottom of the tire, push the top in toward the engine why pulling the bottom out, and vise-versa to see if the tire "wobbles" in and out. Anyplay/woble at all is an issue.
Finally, you will need to inspect your knuckle ball joints as play in the ball joints can lead to excessive bump steer as well. Tie rod ends as well. You can check these by having someone turn the tires left and right w/jeep on, and visually inspecting steering components for play.
How much lift are you running?
Did you install the lift?
If all of these parts check out, you may need to look into a tye-rod flip or hi-steer kit to return to stock performance.