1999-2005 Superduty 2.5 PB Front Shock Kit (ICO37710P)Upgrade the ride on your 1999 2005 Superduty with ICON 2. 5 Series shocks. Vehicle specific valving delivers better damping, less body roll, and a more planted feel on any surface. Features ICONs internal Bump Zone" increases damping by 20% to provide more control as the shock approaches full compression Remote reservoir design improves heat dissipation to reduce shock fade during prolonged use Premium grade 5WT shock oil for consistent suspension