Funny how only cc comes up on Curts website. I have their class V on my truck and if you go to Etrailer site they show them for your truck.
2006 Chevrolet Silverado Trailer Hitch Curt Class V 2 Inch Hitch | etrailer.com
07 GMC CC LB dually LBZ, DeeZee boards, 50 gal Transfer Flow inbed tank
1941 Ford cpe 454/700R4
1917 T roadster 270 Hemi/4 spd
34' car trailer w/63" semi sleeper on the front
Dually Club #912