TX04 O70 r f RPO DEFINITIONS A U A L35 ENGINE 4 3L 4 3W CENTRAL PORT NJECT ON V6 9O DEG L38 ENG NE 2 5L 2 5A 4 CYL MD8 TRANSMISSIONAUTOMATIC 4 SPE ED THM7OOR4 4L60 VD1 PROVISION OPTIONS EUROPE EXPORT ZR9 SYCLONE PERFORMANCEPACKAGE Z79 TYPHOON PERFORMANCE PACKAGE 1992 GENERAL MOTORS SERVICE PARTS OPERAT ONS LT TRUCK 53 t 1 92 4 57 4 000 GROUP