309240 / 309240 - Application Notes The 2004-2006 F150 comes from the factory styled with the front-end suspension lower in height than the rear. For the truck enthusiast looking to level out the suspension and improve the appearance of this vehicle the STILLEN leveling kit is the perfect solution. This kit balances the ride height from front to back by raising the front up to the level of the rear. This change in height does not affect the factory ride or spring rate. • Aircraft Grade Aluminum • Provides a level ride height front to rear.