In rare cases some Ford Super Duty’s require a different alignment cam on driver and passenger to correct for steering pull. The Icon 2.5” coil springs provide a 2.3° caster correction kit. There is an aftermarket alignment cam that is 2.6° of castor correction. In some rare instances either the driver side or passenger side will have to be swapped to the 2.6° cam in order address the issue of steering pull.
There is also the possibility for vehicles equipped with the ICON dual steering stabilizer, that one of the shocks is damaged or in need of repair. The best way to verify if the stabilizer is in need of service is to remove both shocks from the vehicle and compress them side-by-side. If there is a difference in resistance in either compression or rebound between the two units it’s likely the unit with the least resistance requires service or some sort of maintenance. The duel steering stabilizer systems have dual opposing shock absorbers and the force created by the shock is canceled by its counterpart. This is why if one unit is damaged or need of service you will feel steering push in one direction. For more information contact ICON tech-support (951) 689-ICON.