A FUEL EXHAUST CARBURETION V LIGHT TRUCK 1 MODEL REFERENCE 1987 ELECTRONIC FUEL INJECTION EFI THROTTLE BODY INJECTED 4 FOLLOW PROCEDURE OUTLINED BELOW T0 DETERMINE CARBURETOR AND OR PART NUMBER 1 DETERMINE VEHICLE MODEL CHECK VIN DIVISIONAL CODE 2 DETERMINE ENGINE AND CARBURETOR TYPE 3 PART NUMBER CAN BE DETERMINED BY CROSS REFERENCING CORRESPONDING COLUMN NUMBER WITH SAME COLUMN NUMBER ON CHARTS VIN PRODUCTION DIV CODE USAGE COL N0 17087004 CT R1 2 5 0H 4 1 17087005 CT R2 3 5 7K W NA4 EXC NM8 EXPORT 2 17087100 CT R1 2 3 5 7K W NA1 3 17087100 CT 7 R1 2 3 5 7K W NA4 NM8 EXPORT 3 17087021 CT RV2 3 7 4N W A T M40 4 17087090 CT R1 2 4 3Z 5 17087257 CT RV2 3 7 4N W M T M20 6 17087019 CT V1 5 0H 7 17087162 CT V1 4 3Z 8 17087020 CT V2 3 5 7K W NA4 EXC NM8 EXPORT 9 17087101 CT V1 2 5 7K W NA1 10 17087101 CT 7 V1 2 3 5 7K W NA4 NM8 EXPORT 10 1988 GENERAL MOTORS SERVICE PARTS OPERATIONS LIGHT TRUCK 52R 3 725 A I CARB EFI 2 REV 1 88