Bingo on the side rear windows folks!

I found the leak the other day, but haven't had a chance to update the thread. I found out the top corner to both rear windows was leaking where the seal had moved itself out from under the plastic frame.

I removed the headliner and all the trim pieces (except for the rear door trim pieces) and asked my brother in law to use a hose on top of the truck while I stayed inside and looked for leaks. I didn't see anything leaking and it was ticking me off. Then all of a sudden I saw a bunch of water dripping out from under the passenger rear side window trim piece onto the door arm rest and splashing onto the seat & floor. Bingo! That's how it's all getting wet there.

So, I had him stop, I then pulled the upper plastic trim piece off the rear door, closed it and did it again. It leaked like a darn sieve!!!! The plastic trim was diverting it down along the door so you didn't notice it, but it was all wet on the seat and floor.

So, I pulled both rear side door windows, scraped the majority of the old butyl strip off with a putty knife, cleaned the rest up with lighter fluid and a paper towel (on both the door and the plastic frame) and then let it air dry.

I then replaced the butyl strip with a 3/8" x 15 ft roll (it didn't take all 15 ft though..probably about 5 ft or so per window). Ya, it may have been a little too thick of a butyl strip, but it seemed to flatten out nicely and leave a thick rope seal around the outer edge of the plastic window frame, as well as under it I'm sure.

So, it's all back together, but I finished around noon yesterday and didn't want to test it out right away. So, maybe I'll test it later or just let it go as is and hope it was fixed. However, that's definitely where my leaks were coming from. The upper corner of each of the rear side windows.

I didn't have any leaks in the rear window or the moonroof at all. I was suspecting the moonroof for a while, but apparently it works/seals just fine.

Oh, as a side note, I pulled up the plastic door sills while I was replacing the window seals and found about a 1/4" of water in the passenger side trough on the floor! Ya, not good; especially since there is a thick electrical wire that runs through there. So, I pulled the rubber plug in the front near the front kick panel and got the water to drain. I also pushed it along the rail towards the hole (you'll see it if you do it) with a wet paper towel and then replaced the rubber plug once all the water was out. I then did my best to dry the carpet and the trough with a regular towel and then let it air dry (along with the driver's side, but there was no water in that trough) while I was working on the windows.

So, with everything about as dry as I could get it, I put it all back together yesterday.

So, if anyone is getting their rear seats wet or just the floor near the rear doors, I would definitely check the rear side windows (both sides) because the butyl strip was hanging out of the upper corner on both windows.

Thanks to everyone for their input and help here!

Mat