This Roll Center Kit incorporates 2 steering arm tie rod ends and 2 ball joints and is designed to raise front roll-center geometry after lowering the vehicle and also improve on the original bump-steer geometry. Changing front suspension geometry by raising roll-center, results in substantial increase to roll resistance and significant reduction of suspension compression of outside front wheel during cornering through improved weight transfer distribution. Whilst bump steer correction via extended tie rods aids in minimizing steering angle input during suspension articulation.
ditch your old crusty ball joints and ends for these. It tightens up the front end so much. I noticed my tires were getting chopped due to bad ball joints.