Belltech 5547 AntiSway Bar fits Ford F150 models. Please visit us to verify fitment on your vehicle. AntiSway Bar. Specs. Position Rear Size 1″ One of the most notable improvements you can make to your Sport Truck or SUV is the addition of Belltech AntiSwaybars. The reduction of the boatlike body roll not only creates a more confident driving feel but by keeping the body flat in turns and during emergency maneuvers increases the safety factor as well.Incorporating 20 plus years of design experience Belltech AntiSwaybars are designed to improve handling and steering response by minimizing body roll while not affecting ride quality. Belltech AntiSwaybars are manufactured from cold formed solid steel and use swedged ends for their superior strength and reliability. All Belltech AntiSwaybars include high grade mounting hardware polyurethane bushings and are powder coated brilliant silver for a lasting finish.