The Daystar 2" strut spacers for the Ford F150 and Expedition are mounted on top of the strut directly to the factory strut assembly. This type of installation does not preload the factory coil spring so the factory ride quality is mainteined. Daystar uses Polyurethane material to absorb the noise, vibration and harmonics that come from the suspension. Installs easily with simple hand tools.
View installation instructions