Transfer Case Adapter is a direct fit for the following:

2002-2006 Chevrolet Avalanche 1500
2002-2006 Chevrolet Avalanche 2500
2001-2006 Chevrolet Silverado 1500 HD
1999-2004 Chevrolet Silverado 2500
2001-2007 Chevrolet Silverado 2500 HD
2001-2007 Chevrolet Silverado 3500
2000-2006 Chevrolet Suburban 1500
2000-2006 Chevrolet Suburban 2500
2001-2005 Chevrolet Tahoe
2001-2006 GMC Sierra 1500 HD
1999-2004 GMC Sierra 2500
2001-2007 GMC Sierra 2500 HD
2001-2006 GMC Sierra 3500
2002-2006 GMC Yukon
2002-2006 GMC Yukon XL 1500
2002-2006 GMC Yukon XL 2500

Genuine GM Part Number: 15724745