Compatibility: 3rd Brake Light Assembly perfectly fit for 1999-2006 Silverado 1500/2500/3500; 2001-2006 Silverado 1500HD/2500HD/3500HD; 2007 Silverado 1500/2500/3500 & HD Classic; 1999-2006 Sierra 1500/2500/3500; 2001-2006 Sierra 1500HD/2500HD/3500HD; 2007 Sierra 1500/2500/3500 & HD Classic.
