TRANSMISSION IDENTIFICATION 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 1991 ME9 4 SPD A T THM44OT4 1WMH 2 84 RATIO 1WJH 2 97 RATIO 1WXH 3 33 RATIO 1992 M13 4 SPD A T THM 4T60 E 2YMW 2 84 RATIO 2BYW 3 06 RATIO 2CLW 2 84 RATIO 2CTW 3 06 RATIO 2CZW 2 97 RATIO 2PHW 2 97 RATIO 1993 M13 4 SPD A T THM 4T60 E 3BYW 3 06 RATIO 3CLW 2 84 RATIO 3CTW 3 06 RATIO 3CZW 2 97 RATIO 3PHW 2 97 RATIO 3YMW 2 84 RATIO 1993 GENERAL MOTORS SERVICE PARTS OPERATIONS PONTIAC 22H T 4 000 4 4 5 93