GVWR is what the total the truck can weigh. GCWR is the total weight of the truck and RV,, CC is what one can put in The truck.true CC is the actual weight of the truck ready for towing less the sticker GVWR. That number is commonly the pin weight that you can support. The truck will also have a TT and 5th wheel tow capacity. yes that sticker is important as is the actual weight of the truck and RV. The link I provided is a source. I carried that with me when we sold these things.
This is the Ford 150 tow guide from Ford.
http://www.ford.com/resources/ford/g...rv&tt_f150.pdf