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 1984 MD9 3 SPD A T MEQ 4 SPD A T THM125C THM44OT4 M19 4 SPD MAN BF 2 97 RATIO BC 2 84 RATIO UF 3 65 RATIO BL 2 53 RATIO UN 2 66 RATIO HS 2 84 RATIO OP 2 39 RATIO PD 2 84 RATIO PW 2 39 RATIO MY8 4 SPD MAN UR 2 66 RATIO FRONT AXLE IDENTIFICATION 2 39 RATIO 2 53 RATIO 2 66 RATIO OP BL UN PW UR 2 84 RATIO 2 97 RATIO 3 65 RATIO HS BF UF PD BC 1985 MD9 3 SPD A T ME9 4 SPD A T THM125C THM44OT4 BL 2 53 RATIO BA 2 84 RATIO BF 2 97 RATIO HT 3 06 RATIO HS 2 84 RATIO HJ 3 06 RATIO OP 2 39 RATIO PD 2 84 RATIO L L 1992 GENERAL MOTORS SERVICE PARTS OPERAT ONS OLDSMOBILE 32A 1 1 192 4 5 4 000