our above door awning did the same thing, it took me many weeks to solve the bing bang bing noise
i need to look at the main awning arm now, never thought about it being a rattler
USN Retired, Life time member of the DAV.
Enjoying the 2008 Damon Tuscany 4056, #3998 no your eyes are fine, there are really 6 slides
2021 F250 or 2012 Edge toads