Skyjacker 8299 Dual Steering Stabilizer Kit (for Ford F-250/350 Super Duty and Excursion - Black) Fits 1999-2004 Ford F-250/350 Super Duty and Excursion Dampening Shock For Steering Stabilizer Dampens Harshness Of Highway Dampens Shimmy From Larger Tires Reduce Physical Strength Handling Larger Tires which Reduces Driver Fatigue