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 1982 MV9 3 SPD A T M24 4 SPD MAN M26 4 SPD MAN THMZOOC CB CW C7 HO UA RA CK CX HF OR CN CY HH PS CO CZ HL 1983 MV9 3 SPD A T MD8 4 SPD A T MO8 4 SPD MAN THM2OOC THM7OOR4 CN HF HL PS PQ YF YG YP HB HH HO MK4 5 SPD MAN MK5 5 SPD MAN MK6 5 SPD MAN ZN CAC ZR M26 4 SPD MAN O RA 1984 MDB 4 SPD A T MV9 3 SPD A T M26 4 SPD MAN THM7OOR4 THM2OOC Y9 Y6 YG YH OU OR JY BH RA YK YP PQ Y7 OI YN Y8 YF ML3 5 SPD MAN ML8 5 SPD MAN MK6 5 SPD MAN DC NW DD NT DF NS MO8 5 SPD MAN CBC i 1988 GENERAL MOTORS SERVICE PARTS OPERATIONS CHEVROLET l7F T 42 REV 6 88