Rear Platform Trailer Weight Distributor Hitch is a direct fit for the following:

1999-2007 Chevrolet Silverado 1500 Chevrolet Silverado 2500
2000-2004 Chevrolet Suburban
1999-2007 GMC Sierra 2500 GMC Sierra 1500 Chevrolet Silverado 1500 HD hevrolet Silverado 2500 HD GMC Sierra 1500 HD MC Sierra 2500 HD

Genuine GM Part Number: 19180779