Be sure to read the fine print that goes with the advertised maximum towing capacity. I know RT used to advertise a towing number, but when you read the fine print, it was with nothing extra in the B, no options, just the driver and IIRC minimal fuel & empty water & waste tanks. That may or may not have changed since around '02 or so.
Jim, "Be careful reading the fine print. There's no way you're going to like it."