me 1977 IZy2 MS BlLE TRANSMISSION IDENTIFICATION I OTE Transmission Identification can be Located in One of Three Positions on the Transmission A Identification Pilate on Side of Case B Stamping Number on Governor Cover C lnk Stamped on Bell I Iousing SERIES ASSEw3 l giQDES lVli5 3 38 3 SPD AT ZH KE LH LE LM LD LX LP lVl4O 3 M75 5 SPD IVIAN OB OC RU B C SERIES ASJSEIVIBLY CODES lVl29 3 SPD AT l MO 3 S Fg xl l I38 3 SPD AT OS OW OD OC LC LA CY KE LK LZ LJ LT LS SERIES ASSEN BL QDES IVIAIO 3 SBZLJAI OJ SERIES ASSEQ IE i IE DES Mil M20 ji l29 3 SPD AT ZS ZN BH BU RY RH CK l l38 3 M75 5 SPD l IAN AP AO RYVI RK KL KP RN RJ i SERIES ASSEIVIEILY CODES l l l 5 3 Ii I2 3 SPD AT ZH 2c Ez ci M BL ML ii 5E KK IAC KJ KX LK 198 GENERAL MOTORS SERVICE PARTS OPERATiONS L LDSl 1OB1LE 31 313