New and Genuine Porsche. This is the updated version that is serrated on one side. Includes new hardware as shown in pictures. Fits all 944 and 968 with factory aluminum control arms.If you are using wheels larger than 16″ it is recomended by Porsche to upgrade to this new style eccentric bolt which allows the front suspension to be adjusted correctly to accomodate the larger wheel size.Fits The Following Models :944 1985/2 – 1989944 Turbo 1986 – 1991944 S 1987 – 1988944 S2 1989 – 1991968 1992 – 1995