Rainguard TFX 4-PC Window Vents. Includes the set of 4 Rainguard TFX window vents, Low profile, tape on and Acrylic. Compatible with the following models but installation may vary from model to model: 1999-2006 Chevrolet Silverado 1500/ 2007-2007 Chevrolet Silverado 1500 Classic/1999-2004 Chevrolet Silverado 2500/ 2007-2007 Chevrolet Silverado 2500 HD Classic/ 2001-2006 Chevrolet Silverado 3500/ 2007-2007 Chevrolet Silverado 3500 Classic/ 1999-2006 GMC Sierra 1500/ 2007-2007 GMC Sierra 1500 Classic/ 1999-2004 GMC Sierra 2500/ 2007-2007 GMC Sierra 2500 HD Classic/ 2001-2006 GMC Sierra 3500/ 2007-2007 GMC Sierra 3500 Classic.