Mine leaked, and had since it was new based on what I found(good job Ford). I got a roll of the stock butyl sealant, took the window trim off, and packed the butyl into the gaps. It has been workimg for the last few years. Turns out the windshield didn't sit on the poorly installed sealant on either side of the frame and there was a dented area above the steering wheel that allowed water to flow right in. Looks to have occurred before the truck was painted at the factory.