I justy got the relocating brackets and my mirrors are stuck in the factory bracket. I ve tried leaving the screw in and using a rubber mallet already. Any other ideas?

 

Not sure if you already tried this....
But I just relocated my mirrors about three weeks ago and was having a problem taking them off. I found that if you rotate the mirror while lifting up itll come off alot easier... similar to the same way you swing the doors while removing them. And I'm assuming you unscrew the bolt on the bottom. Hope this helps

 

I went to lowes and found a bolt that fit and was super long. Then just hit it with a hammer till it popped out