TRANSMISSION IDENTIFICATION TRANSMISSION TO ASSEMBLY CODES Note Transmission identification can be located in one of three positions on the transmission A Identifioation plate on side of case B Stamping number on governor cover C Ink stamped on bell housing 1982 MD9 3 SPD A T THM125C M19 4 SPD MAN CJ 2 84 RATIO AX 3 32 RATIO HC 2 84 RATIO AY 3 65 RATIO CI 3 18 RATIO FB 4 10 RATIO HU 3 18 RATIO P3 3 33 RATIO PG 3 18 RATIO C3 3 33 RATIO CU 3 18 RATIO CF 3 73 RATIO HY 3 18 RATIO HI 2 84 RATIO HR 3 73 RATIO FRONT AXLE IDENTIFICATION 2 84 RATIO F17 OPTION 3 18 RATIO F75 OPTION 3 32 RATIO F25 OPTION E CJ HI CI HY AX HC CU PG HU 3 33 RATIO GX3 OPTION 3 65 RATIO GY5 OPTION 3 73 RATIO F77 OPTION C3 P3 AY CF HR 4 10 RATIO FW5 OPTION FB i 1989 GENERAL MOTORS SERVICE PARTS OPERATIONS BUICK 44J 22 REV 10 89