That was the first thing I did. Jayco customer service informed me they do not provide mobile techs. They gave me the number for the axle manufacturer and said to call them to see if they do, or call a mobile tech to have them check it out and call Jayco for an authorization to do any repairs. So now I''m just waiting for some calls back from possible mobile techs. It's probably nothing, maybe some dirt or gravel, but with the family in the truck I'd rather play this one safe and have it checked out before we continue on.