TX03 004 RPO DEFINITIONS NM8 EMISSION SYSTENLLEADED FUEL EXPORT X88 CONVERSION CHEVROLET ZR9 SYCLONE PERFORMANCE PACKAGE Z79 TYPHOON PERFORMANCE PACKAGE Z88 GMC TRUCK I I 1992 GENERAL MOTORS SERVICE PARTS OPERAT ONS LT TRUCK 53S A 1 92 I 3 53 i 3 000 GROUP