Why don't you call Winnebago? They are very good answering questions like this and will even email you diagrams and schematics if you want. Call early before they get busy for shorter wait times.
Winnebago General Inquires for MH’s
641-585-3535 or 641-585-6395 (Had them forward me to the parts dept.)
Service Dept. 800-537-1885 and then there’s an menu option