Is it an 2009? The Workhorse W16 chassis was an option and it has a 1000 lb heavier rear axle than the Ford F53 chassis under the same coach.
But the newer small A's generally have an adequate chassis under them - a chassis designed from the ground up to carry an RV. That wasn't the case back in 1984. That doesn't mean the late model chassis cannot be improved in ride and handling, but they are far, far better than what you may remember.
2004 American Tradition; 2014 Buick LaCRosse
Homebase in the Ocala Nat'l Forest near Ocala, FL