NOS GM rear end vent. When only the best will do for your restoration. These came in bulk, so the package is not included. You can see the package in the picture.

Fits many different application some of which are listed here, but as always, check your specific aplication.1969 69 1970 70 1971 71 1972 72 Chevelle Nova Camaro Impala Monte Carlo El Camino Super Sport SS Rally Sport RS Z-28 COPO L-78 LS-6 SS454 SS396 427 302 350 SS-396 SS-454 L78 LS6 LS5 LS-5 L34 L-34 LT-1 LT1 SS427 SS-427 1968 68.