As part of refurbishing the CUCV I wanted to replace some cracked and dryrotted window seals. These were probably the original seals. The problem is that the seals will go bad and leak water inside the door causing rust problems. Keeping the drains at the bottom of the door clean helps clear the water. I bought a new window seal kit from LMC for about $120.00 The installation requires you to remove the door panels and overall it was pretty easy to complete. I used WD-40 to help slide the seals into the window channels. See pics and captions below for more information.
Before pics of bad window seals
Pics of the tool used to remove the window crank
Door panel removed
Removing old seals they are just clipped on to the door. The seal around the window was just peeled out.
New seals from LMC
New seals in. Another nice and easy install