I MA03 0914 RPOI DEFINITIONS A FW2 TRANSAXLE FINAL DR VE 3 06 RATIO LG7 ENGINE 3 3L 3 3N V6 MD9 TRANSM SSION AUTOMATIC 3 SPEED THM I 25C 3T40 ME9 TRANSMISSIGNAUTOMATIC 4 SPEED THM440 T4 4T60 NA5 EMISSION SYSTEM FEDERAL REQUIREMENTS NB2 EMISSION SYSTEM CALIFORNIA REQUIREMENTS NM8 E M SSION SYSTEM LEADED FUEL EXPORT V08 COOLING SYSTEM HEAVY DUTY j I993 GENERAL MOTORS SERVICE PARTS OPERATIONS BUICK 44A T 4 93 3 161 3 000 GROUP