TRUCK TRANSMISSION PRODUCTION CODE EXPLANATION Continued r THM 400 475 TRANSMISSION I D NAMEPLATE REAR WHEEL DRIVE Julian Date Model Year I 86 FSA 2025 I 85 1985 586 1986 S7 1987 SB 1988 etc Serial Number Model LOCATION PASSENGER SIDE EY GOVERNOR COVER NEAR THE REAR OF THE TRANSMISSION THM 700 R4 TRANSMISSION IDENTIFICATION INFORMATION REAR WHEEL DRIVE Model Year 5 1985 6 1986 1 1981 Additional ident for 8 1988 some 1986 models only Julian Data 9 1989 or Day of the Year THM 700 RH 6 YK M V 00248949 267 A Toledo Model Shift Built Serial Number A B First Shift C H Second Shift LOCATION PASSENGER SIDE DIRECTLY ABOVE THE OIL PAN NEAR THE REAR OF THE TRANSMISSION i 3 I990 GENERAL MOTORS SERVXCE PARTS OPERATIONS LTTRUCK 52R REV 9 90 4 3 4 000