1984 SALES OPTION BUICK Y5O OPTION RIVIERA SPORTY T TYPE MODEL EZ57 W Y5O CHANGES VIN TO EY57 T OPTIONS Y5O RIVIERA SPORTY T TYPE BC3 PANEL INSTR DLX BW1 ORNAMENTATION RR END EXTR BX1 ORNAMENT FRT END SPL EXTR B94 EMBLEM BODY VAR 1 D88 STRIPE HOOD DECK LID F41 SUSPENSION SPL H D FRT RR LM9 ENGINE ASM 3 8L V6 NP5 WHEEL STRG LEATHER WRAPPED PG5 WHEEL 15 X 6 CAST ALUMINUM T52 ORNAMENT FRT FDR 1991 GENERAL MOTORS SERVICE PARTS OPERATIONS BUICK 44W 28 6 91