Fabtech 15-18 Chevrolet Colorado 4WD 1.5in Leveling SystemOur Leveling Systems are designed for truck enthusiasts looking tolift the front of their vehicle without a full suspension system. Theseforged torsion bar keys are re indexed to allow a greater range of heightadjustment to the factory torsion bars. With this increased ride heightwe provide extended length vehicle specific gas monotube shocks for thisapplication. These shocks have been prevalved to work in conjunction withthe torsion bars and keys