Thanks for the quick response. It's a Winnebago Journey 36' on a Freightliner chassis. This one has a 350hp Caterpillar engine. Manual says it's a 36G.
I have not had it weighed and will do that but I feel pretty certain I'm not overloaded. We travel mostly with grey, black and fresh water empty or nearly so
.We've been very aware of keeping the weight down plus we have less storage space because the Journey has the heat pump, air conditioning etc in the basement.
Really appreciate any words of wisdom. Thanks everyone.