TRANSMISSION IDENTIFICATION ASSEMBLY CODE TD TRANSMISSION 1985 BP MD9 F N MD9 1986 GBA MD9 GBP MD9 GPN MD9 1987 7BD C MD9 7B JC MD9 7PNC MD9 5ZF MT2 1988 8KDC MD9 8PNC MD9 BBHFI MD9 8BJH MD9 1989 9KDC MD9 9PNC MD9 QBUC MD9 9KMC MD9 1990 OBUC MDSl OKDC MD9 OPNC MD9 1991 1BUC MDE1 1KDC MD9 L L 1991 GENERAL MOTORS SERVICE PARTS OPERAT ONS BU CK 44N 1 2 9 1 4 ss 4 000