Brand New Drive Shaft Center Support Carrier Bearing Allows Replacement of a Damaged or Failed Carrier Bearing Internal Diameter: 1.377in; Hole Centers : 6.620in; (2WD or 4WD) Compatible With 1992-2000 Chevrolet C3500 Compatible With 1999-2006 Chevrolet Silverado 1500 Compatible With 2007-2007 Chevrolet Silverado 1500 Classic Compatible With 2001-2004 Chevrolet Silverado 2500 Compatible With 2001-2006 Chevrolet Silverado 2500 HD Compatible With 2007-2007 Chevrolet Silverado 2500 HD Classic Compatible With 2001-2006 Chevrolet Silverado 3500 Compatible With 2007-2007 Chevrolet Silverado 3500 Classic Compatible With 1992-2000 GMC C3500 Compatible With 1999-2006 GMC Sierra 1500 Compatible With 2007-2007 GMC Sierra 1500 Classic Compatible With 2001-2004 GMC Sierra 2500 Compatible With 2001-2006 GMC Sierra 2500 HD Compatible With 2007-2007 GMC Sierra 2500 HD Classic Compatible With 2001-2006 GMC Sierra 3500 Compatible With 2007-2007 GMC Sierra 3500 Classic See Compatibility Chart To Verify Your Specific Vehicle Year, Make, & Model Replaces 12471505, 31026498, N217020