Hi bherdina,
Welcome to the Heartland Owners Forum.
Is this a North Trail 31bhdd you're asking about?
If a North Trail owner sees this post, I'm sure they'll jump in with an answer. If not, let me suggest you call Heartland Customer Service at 877-262-8032 / 574-262-8030 and ask for the North Trail sales team. They should be able to answer your questions.