4C06 301 RPO DEFINITIONS I I n I L27 ENGINE 3 8L 3 8L V6 L67 ENGINE GAS 6 CYL 3 8L 3 8 1 MF V6 SUPERCHARGED T89 LAMP TA L AND STOP EXPORT T90 LAMP S GNAL NG AND MARKER EXPORT I T A 1 i 1992 GENERAL MOTORS SERVICE PARTS OPERAT ONS BU CK 44C 6 000 GROUP V 648 8 92