TRANSMISSION IDENTIFICATION CONT D INCLUDING AXLE RATIO TRANSMISSION TO ASSEMBLY CODES Note Transmission identification can be located in one of three positions on the transmission A Identification plate on side of case B Stamping number on governor cover C Ink stamped on bell housing 1990 ME9 3 SPD A T THM440T4 OBHH 2 84 RATIO OBWH 2 97 RATIO OWMH 2 84 RATIO 0WPH 2 97 RATIO 1991 M13 4 SPD A T THM 4T60 E 1BC 2 84 RATIO IBS 3 06 RATIO 1KTW 3 06 RATIO 199 2 M13 4 SPD A T THM 4T60 E 2YMW 2 84 RATIO 2YZW 3 06 RATIO A 2BYW 3 06 RATIO 2BTW 2 97 RATIO 2CLW 2 84 RATIO 2CSW 3 06 RATIO 2CTW 3 06 RATIO 2CXW 2 97 RATIO 1993 M13 4 SPD A T THM 4T60 E 3CLW 2 84 RATIO 3CSW 3 06 RATIO 3CTW 3 06 RATIO 3CXW 2 97 RATIO 3WAW 3 06 RATIO 3UMW 2 84 RATIO 3YXW 3 06 RATIO 3BTW 2 97 RATIO 1993 GENERAL MOTORS SERVICE PARTS 0PERAT 0NS 0LDSMOBlLE 32C T 4 000 4 6 2 93