Ground strap for transmission; suitable for Porsche 911 models 1972-1985 and Porsche 911 Turbo models built between 1985-1988 (with GKB 930.36). Also fits Porsche 964 models 1989-1994, as well as Porsche 993 Carrera and Turbo models 1994-1998 (with GKB 650.20 / 21/30 and 31 and GKB 64.20 / 21 and 51).