TRANSMISSION IDENTIFICATION CONT D 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 MW9 4 SPD A T W OVPDRIVE M31 3 SPD A T THM125C THM2004R THM25OC CE CT PD PW HE OG OM OZ XH WK XD HS HG OJ OO MV4 4 SPD A T MV9 3 SPD A T M57 4 SPD A T THM35OC THMZOOC THM3254L XC XS WC XA OU OI OR BH BE OE OK XN XX M19 4 SPD MAN M17 4 SPD MAN MY8 4 SPD MAN UB UF UM DB UH DS NA UD UR DN UC UN DM 1985 MV9 3 SPD A T MW9 4 SPD A T W OVRDRIVE M57 4 SPD A T THMZOOC THM2004R THM3254L BH OU HH HL HE OG OM OZ OE OK OO OI HG OJ 1986 MV9 3 SPD A T MW9 4 SPD A T THMZOOC THM2004R OVERDRIVE GBH 6HH GKA 6HL GHC 6KC 6KZ 1987 MV9 3 SPD A T MW9 4 SPD A T THMZOOC THM2004R OVEBDRIVE 7BHB 7HHB 7HLB 7KBB 7HTF 7KTF 7KZF 7KJF 7HFF 7KCF 7HDF 1991 GENERAL NIOWFOHS SERVICE PARTS OPERATIONS OLDSMOB LE 32W i i 6 91 4 7 4 000