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 1993 MD8 4 SPD A T M49 5 SPD M T M28 6 SPD A T THM7OOR4 3FDM 3FFM 3FMM 3FAM DBB DFH M29 6 SPD M T DFJ T i 1993 GENERAL MOTORS SERVICE PARTS OPERATIONS CHEVROLET 18F i 4 000 4 2 5 93