New OEM factory surplus 30.5" Fixed radio antenna mast (15087886) 10289035, 15042595, 15074561 for a 1999-2004 Chevrolet C5 Corvette. This antenna is the U73 fixed design for the FRC and Z06 Corvettes. NOTE: THIS IS THE SMOOTH DESIGN MAST. This antenna also fits the vehicles listed in the Fits section below.