My coach also didn't have belts.. I did a bit of research and U need M.
Not sure you would get push-back until you have a inspection.. So I put them on the drivers seat.. This is one place too find them..
http://www.discountvantruck.com/rvse...eseatbelts.htm
They were ez to install.. you will also need the brackets when u figure out how u want to install them..
Jimmy