TS03 028 RPO DEFINITIONS I LL2 ENG NE 2 8L 2 8R V6 L35 ENGINE 4 3L 4 3W CENTRAL PORT NJECT ON V6 9O DEG L38 ENGINE 2 5L 2 5A 4 CYL MD8 TRANSMISSIONAUTOMATIC 4 SPEED THM7OOR4 4L60 MY2 TRANSM SSION MANUAL 5 SPErED X88 CONVERSION CHEVROLET ZR9 SYCLONE PERFORMANCE PACKAGE Z79 TYPHOON PERFORMANCE PACKAGE Z88 GMC TRUCK V I I I 4 1992 GENERAL MOTORS SERVICE PARTS OPERATIONS LT TRUCK 538 3 000 GROUP 3 18 1 92