The Sinister Diesel Adjustable Track Bar is precision manufactured from high strength forged bars for unparalleled durability and includes long lasting Heavy Duty polyurethane bushings. With this track bar you will drive straighter, improve tire wear, have less "wander" and a much more positive steering feel. This kit accommodates 4" lifts (more if used with a drop bracket!) and helps eliminate the "Death Wobble" that's sometimes found in lifted trucks. The Sinister Diesel Track Bar is a great compliment to our Steering Box Support!