TX09 104 RPO DEFINITIONS UD4 ALARM VEHICLE SPEED 12O KPH EXPORT U18 SPEEDOMETER INSTRUMENT K LOM ETER EXPORT U52 CLUSTER INSTRUMENT ELECTRONIC Z49 MANDATORY CANADIAN BASE EQUIPMENT MOD F CAT ONS CANADIAN I sn i 1992 GENERAL MOTORS SERVICE PARTS OPERATIONS L GHT TRUCK 53M I 9 000 GROUP I 9 46 8 92