aFe Power 101-5600-81 Control Sway-A-Way 2.5" Front Coil Over Kit 7/8" Polished Nitro Steel shafts and COM 10 Teflon lined steel spherical bearings CNC machined components made to the strictest tolerances Multi-Seal carrier to ensure zero leakage Internal Floating Piston (IFP) for simple installation Completely adjustable and rebuildable using simple tools