TG03 3A20 RPO DEFINITIONS V L19 ENGINE 7 4L 7 4N V8 T B I NA1 EMISSION SYSTEM LESS THAN 8500 LB GVW NM8 EMISSION SYSTEM LEADED FUEL EXPOFIT DOMESTIC MILITARY V wl I wd A I I su 1 199S GENERAL MOTORS SERVICE PARTSV0PERAT ONS L GHT TRUCK 53G 3 000 GROUP 3 50 O 2 93