I TZS01 01 I RPO DEFINITIONS A A ZO9 PACKAGE BLACK APPEARANCE EXTERIOR 279 TYPHOON PERFORMANCE PACKAGE Z88 GMC TRUCK 4 5Z7 BAJA PACKAGE 4 I U A I 1992 GENERAL MOTORS SERVICE PARTS 0PERATIONS LT TRUCK453S j A 18 000 GROUP K 18 8 I 1 92