I just noticed that my rear window on my truck is leaking only on the driver side. If you look at it from the outside it looks like the window actually shifted out of place! I unscrewed the light out too see if the plastic piece around the window came off so I could silicon it but doesn't come off at all, then that's when I noticed my window uneven. If anyone has had this problem or herd of the same problem let me know, thanks! Any info would help..

 

...it's a 03' f150 xlt

 

See
https://www.f150forum.com/f2/rear-window-leak-123512/