B19 1977 BUICK TRANSMISSION IDENTIFICATION 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 A SERIES ASSEMBLY CODES MI5 3 SPD MAN M38 3 SPD AT M40 3 SPD AT ZH KA LE BB OC KE LM OB KW KH LD AF AH g B SERIES ASSEMBLY CODES M29 3 SPD AT M38 3 SPD AT A PZ KE LC KW OS LA LA AF AH C SERIES ASSEMBLY CODES I M38 3 SPD AT KC LT LS H SERIES ASSEMBLY CODES M20 4 SPD MAN M75 5 SPD MAN M29 3 SPD AT ZS RY RM RN BH BU M38 3 SPD A T A KL KP X SERIES ASSEMBLY CODES MI5 3 SPD MAN M29 3 SPD AT M38 3 SPD AT ZH BZ BL KJ KS KK KX KC AG I T SERIES ASSEMBLY CODES M29 3 SPD A T M20 4 SPD MAN BR WAREHOUSING AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATlON BUICK 41 33