Belltech ANTI-SWAYBAR SETS 5400/5500One of the most notable but often forgotten improvements you can make to your Sport Truck or SUV is the addition of Belltech Anti Swaybars. The reduction of the boat like body roll keeping the body flat in the turns creates a more confident and safe driving experience. Incorporating 30 plus years of design experience, Belltech Anti Swaybars are designed to improve handling and steering response by minimizing body roll while not affecting ride quality.