The outside of my door had came apart from the inside of my door right towards the top before you get to the window. I can pry it open to get something in there to seal it, but what should I use? I have heard to use JB Weld b/c one of my friends used it, but it still kept coming apart after he applied it several times. Any other suggestions? Sorry if this is in the wrong forum Brent.

 

Take it to a few auto body repair shops and see what they say.
With luck it'll be an easy fix.