A/C vent loose on 2007 Silverado HD 2500

[pearlygate]

The driver side front AC vent is very loose and I am trying to figure out how to secure it on my HD2500 new body style. Suggestions? I don't want to break anything by removing it to check it out. Thinking about using gasket seal to stick it in place.

[00Silverado4x4]

Duct tape!

 

Sorry cheap shot. Just goofing, but seriously...

What do you mean by loose? The whole assembly falling out? The directing fins falling out or not staying put? Have a pic or video by chance? My truck is and old 800 series so I don't a visual on the problem.