I should have read this post regarding how to adjust the door tighter to the seal before I fixed the leak on my barn door. I ended up going to the local parts store and purchased some self stick rubber window gasket material and applied it to the door. The gasket runs all the way across the top and about half way down the side of each door. No longer leaks when it rains or at the car wash either.

 

My rear was leaking really badly. Adjusted the latch, and stopped about 90% of the leak.

Attempting to shift the door up, but simple cannot get most of the bolts to move. I’m using good penetrating oil and an impact driver — any advice?

 

Not sure about loosening the bolts but another trick is to get some backer rod from your favorite hardware store and tuck it in behind the door seal. This will push the seal tight against the door.

 

Oh, I like this trick! Will try it out, thanks

 

I was wondering whether you solved the leaky back door by Lifting the door and moving the latch backwards