1989 SPARK PLUG WIRES PLUG PLUG PLUG PLUG PLUG PLUG PLUG PLUG NO 1 NO 2 NO 3 N0 4 N0 5 N0 6 NO 7 N0 8 B 307Y 12036929 12036930 12036930 12036926 12036925 12036924 12036923 12036924 1990 SPARK PLUG WIRES M PLUG PLUG PLUG PLUG PLUG PLUG PLUG PLUG NO 1 NO 2 N0 3 NO 4 N0 5 N0 6 N0 7 N0 8 B 307Y R 12036929 12036930 12036930 12036926 12036925 12036924 12036923 12036924 j 1991 GENERAL MOTORS SERVICE PARTS OPERATIONS BU CK 44W 2 240 2 52 6 91