OTC 6732 Ball Joint Adapter Update Kit for GM Four-piece kit designed to be used with the industry standard OTC No. 7248 C-frame Contains specialty ball joint adapters for GM vehicles Fits 2002-2005 Trailblazer and Envoy 1999-2004 1500 Silverado 1995-2004 Suburban and Tahoe 2002-2004 Avalanche 1999-2004 Escalade 2003-2004 Express and Savana and 2003-2004 Hummer.