Ignition lock cylinder worn out, making turning your key difficult or impossible? This direct replacement properly restores operation while maintaining the same level of security as the original equipment design. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Cadillac Escalade ESV: 2003] - [Cadillac Escalade EXT: 2002, 2003] - [Cadillac Escalade: 2002, 2003] - [Chevrolet Astro: 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005] - [Chevrolet Blazer: 1999, 2000, 2001, 2002] - [Chevrolet Express 1500: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007] - [Chevrolet Express 2500: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007] - [Chevrolet Express 3500: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007] - [Chevrolet S10: 1999, 2000, 2001, 2002] - [Chevrolet Tahoe: 2000, 2001, 2002] - [GMC Jimmy: 1999, 2000, 2001, 2002] - [GMC Safari: 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005] - [GMC Savana 1500: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007] - [GMC Savana 2500: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007] - [GMC Savana 3500: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007] - [GMC Sonoma: 1999, 2000, 2001, 2002] - [GMC Yukon: 2000, 2001, 2002] - [Oldsmobile Bravada: 1998, 1999, 2000, 2001]