MAO3 001 RPO DEFINITIONS F MD9 TRANSMISSIONAUTOMATIC 3 SPEED THM125C 3T40 ME9 TRANSMISSIONAUTOMATIC 4 SPEED THM440 T4 4T60 NA5 EMISSION SYSTEM FEDERAL REQUIREMENTS NB2 EMISSION SYSTEM CALIFORN A REQUIREMENTS NM8 EMISSION SYSTEM LEADED FUEL EXPORT NM8 EMISSION SYSTEM LEADED FUEL COMPATABLE I I I 1993 GENERAL MOTORS SERVICE PARTS OPERAT ON OLD MOB LE 35A I2 93 341 3 000 GROUP