[rheavn]

Chappell,
Yours is acting just like mine did when I purchased my coach.  Mine had a nylon gear that was worn out.  I ordered a new gear and when it came it was steel.  Installed it and has worked perfectly since.  The part was relatively inexpensive.  If your antenna does not set completely down in the holder you can also adjust it so it does.

I'm not at home so I can't provide you the link, but you can find the company by using Google.  If you can't find it & want it, email me & I'll send it to you when I get home.