Ignition Switch: 1968An original type replacement switch is available. Choose from GM AC Delco or aftermarket. Either are good. Not to be confused with the ignition barrel and lock. This section is the part behind the barrel you see. Used on most 1968 model Firebird, Impala, Belair, Parisienne, Laurentians & other 1968 models GM vehicles. Print & check the pin locations before ordering if possible. Should be seven pins in this outline..