2 weeks ago I bought a 2019 1500 Bighorn. Payload is 1788 lbs and max tow 8200. It came with a class 3 Curt hitch, which after some research, I find it is not rated for a weight distribution system. I need some recommendations for hitches. I’ll probably put a class 4 on it just in case I buy a bigger camper someday. My present one is only about 4000 lbs.