P909960 23 spline tool, makes installing a clutch easier, fits; Porsche 911 3.2L built 1986-1989 and installed with a hydraulically operated clutch and G50 type gearbox. Porsche 964 all 3.6L models built 1989-1994. Porsche 993 all 3.6L models built 1995-1997. Porsche 996 all 3.4L & 3.6L models built 1998-2004. Porsche 924 Turbo 2.0L models built 1978-1984. Porsche 924S all 2.5L models built 1986-1988. Porsche 944 all models built 1982-1991. Porsche 968 all models built 1992-1995. Porsche 928 all models built 1978-1995