TRANSMISSION IDENTIFICATION 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 1993 M13 4 SPEED A T 4T6OE 3WAW 3 06 RATIO 3CMW 3 33 RATIO 4 i 1993 GENERAL MOTORS SERVICE PARTS OPERATIONS BUlCK 45W 4 000 4 6 2 93