The ratings they put on vehicles is a bunch of BS to get sales. Look at the ratings the new 1/2 ton trucks have for example. What a joke they are. Take the ratings and substrate about 25-30% in my opinion to be safe.
Not worth risking your life, your family’s or somebody else’s family’s life on the road. Those people pulling 10000# 30+’ campers with half ton trucks down the highway don’t have a clue most the time.