Here is a link to a You Tube video that should be interesting for you to watch.
https://isolate.norton.com/?url=http...%3DV51muxg4vdM
There was another video that will also be of some use ... I had forgotten about the noise that the steps made ... good stuff here.
https://isolate.norton.com/?url=http...%3DjJ4Rt5wJahU
These steps are common to many motorhomes, so the problems encountered are also very much the same.
Good luck!