Rear window rattle

[70barracuda]

Is there a fix for the back slider window rattling around? It's driving me nuts and couldn't find a clear answer.

[pizzaman09]

Probably has a worn out seal that the sliding window sets in.  Finding something to sit in there to take up the slop should help out.

[Airborne Janitor]

Mine rattles too. I notice if I put my finger on the middle slider glass the rattle goes away. I'm wondering if the felt-material along the sliding track has worn out...