Towing capacity vs max cargo weight rating

Don't worry about GVWR (Gross Vehicle Weight Rating) That only takes into consideration the whole vehicle. Look at Rear axle rating and disregard Front axle, engine, frame, brakes, steering, transmission and other components that make up the rest of the tow vehicle. Big enough rear end and you are good to tow. (Sarcasm off now)

I repeat, "Look at all the ratings" as a starting point. Then weigh to verify.