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 1986 ME9 4 SPD A T THM44OT4 6BA 2 84 RATIO 688 2 73 RATIO 6BD 2 84 RATIO 6BH 3 06 RATIO 1987 ME9 4 SPD A T THM44OT4 7FBH 2 73 RATIO 7FJH 2 97 RATIO 7FSH 2 84 RATIO 7HAH 2 73 RATIO 7HCH 2 97 RATIO 1988 ME9 4 SPD A T THM44OT4 8FJH 2 97 RATIO 8BTH 2 97 RATIO 8FSH 2 84 RATIO 8FBH 2 73 RATIO 1989 ME9 4 SRD A T THM44OT4 9BHH 2 84 RATIO 9BTH 2 97 RATIO 9BXH 2 97 RATIO 9WRH 2 84 RATIO 9WUH 2 97 RATIO 1990 ME9 4 SRD A T THM44OT4 OBHH 2 84 RATIO OBWH 2 97 RATIO OWMH 2 84 RATIO OWPH 2 97 RATIO Y 1992 GENERAL MOTORS SERVICE PARTS l PERATlONS BUICK 44H 4 92 4 3 4 000