Transfer Case Main Drive Collar is a direct fit for the following:

2003-2005 Cadillac Escalade
2003-2005 Chevrolet Avalanche
2003-2005 Chevrolet Silverado
2003-2005 Chevrolet Suburban
2003-2005 Chevrolet Tahoe
2003-2005 GMC Sierra
2003-2005 GMC Yukon
2003-2009 Hummer H2

Genuine GM Part Number: 89059281