ReadyLift 66-1113 Front Leveling Suspension Coil Spacer Front Leveling suspension - coil Spacer - Max Lift 1.75 in - Max Tire Diameter 35 Inch Heavy duty welded steel front coil spring spacers Strong black powder coated finish For use on trucks with the new OEM radius arm Suspension design Not compatible with Power Wagon or snow prep/Ambulance package