Does this gasket have a top and a bottom? It appears to be symetrical but the metal flange around the openings is different from one side to the other. Brian http://i121.photobucket.com/albums/o229/brianvtx/Superhawk%20motor%20reassembly/DSC_0345.jpg http://i121.photobucket.com/albums/o229/brianvtx/Superhawk%20motor%20reassembly/DSC_0347.jpg