| New floor pan grommet. We catagorize our floor pan grommets or plugs in the following sizes, it refers to the size of the hole in the metal, not the size of the grommet itself. Other than the pencil size, the other sizes refer to the size of a specific US coin. Pencil, dime, quarter, silver dollar. Fits stock 1973-78 Z-cars. Last update 05/11 |