I've always had good luck calling the number for Ford customer service in the owner's manual (1-800-392-3673). Last time I called, the service rep asked to call me back in a few minutes. About 15 minutes later, she called, giving me the name of a nearby dealership and apologized (!) for taking so long, explaining that she called the dealership herself to make sure it had a service bay that could accommodate my motor home! If none of the suggestions above pan out, you might try a call.
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K4EAK
2013 Thor ACE 30.1