Spyder Signature GMC Sierra 1500/Sierra 1500 HD/Sierra 2500/Sierra 2500 HD/Sierra 3500/Yukon/Yukon XL 1500/Yukon XL 2500 99-07 Uses T10 LED Ultra White LED Bulb Projector Headlights SmokeThese headlights are designed to improve looks and visibility for your vehicle. They are made by OEM approved and ISO certified manufacturers. They are made with OEM standard quality and are designed for stock lights direct replacement. This Part Fits: Year Make Model 1999 2004 GMC Sierra 2500 1999 2007 GMC Sierra 1500 2001 2006 GMC Sierra 3500 2000 2006 GMC Yukon XL 1500 2000 2006 GMC Yukon 2001 2006 GMC Sierra 2500 HD 2000 2006 GMC Yukon XL 2500