FIRESTONE REAR AIR HELPER SPRINGS ; 99-26 F-350/F-450 SUPER DUTY CAB & CHASSIS/ 99-23 F450 SUPER DUTY CAB & CHASSIS
- Keep The Vehicle Level
- Level Off-Center Loads
- Reduce Suspension Fatigue
- Air Adjustments Improves The Ride
- Reduce Bottoming Out
- Increase Vehicle Stability
