I am getting ready to replace my cracked windshield on my 1996 LC and even though it is a southern car I found a small amount of corrosion in one spot! I ground it down treated it and then painted the entire frame area. These trucks are all suspect for this so always watch for early signs. There were no signs for me, just replacing because of a crack and I am glad that I am doing it myself because a normal glass man would have most likely just covered it up.
Mark
Mark