TRANSMISSION IDENTIFIGBATION CONT D TRANSMISSION TO ASSESEMIBLY 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 1983 MD2 3 SPD A T MD9 3 SPD A T MV9 3 SPD A T THMl8OC THMl25C THMZOOC TN CE CT PW HW JY CL PD HD MX2 3 SPD A T M31 3 SPD A T MW9 4 SPD A T THM35OC THM25OC THM2004R W OVRDRIVE KA LB WH WD XK XD WK XH OZ KC MY8 4 SPD MAN M17 4 SPD MAN Ml9 4 SPD MAN AC SC BD SF RD BF SB SD MB4 5 SPD MAN MY1 4 SPD MAN M75 5 SPD MAN CR RB RC 1984 MD2 3 SPD A T MD9 3 SPD A T MV9 3 SPD A T THMIBOC THM125C THM2OOC TP CE 2 53 RATIO OU JY BH CT 3 33 RATIO HS 2 84 RATIO PD 2 84 RATIO PW 2 39 RATIO MW9 4 SPD A T W OVRDRIVE MV4 4 SPD A T MDB 4 SPD A T THM2004R THM35OC THMTOOR4 CR HG WW XC KN X5 YK YN Y6 XX WC XA M31 3 SPD A T THM25OC MY1 4 SPD MAN MY8 4 SPD MAN XK XH WK XD RB RC UD 3 32 RATIO NA UR DN M17 4 SPD MAN Ml9 4 SPD MAN M75 5 SPD MAN UH 3 65 RATIO UC 3 32 RATIO ZA DS UF 3 65 RATIO UB UN UM DM DR 1990 GENERAL MOTORS SERVICE PARTS OPERATIONS PONTIAC 22W t REV 6 90 4 5 4 000