Its pretty easy, You fold the windshield down(undo the rollbar bolts at the top of the windshield on both sides as well as the plates on the dash) Then the seal is just screwed to the bottom of the windshield. They say not to use any silicone or sealant on the new gasket. Also take the time to fix the rust you will most likely find while you have it apart.
IMHO, if you have rot showing on the outside of your windshield frame, it will be much worse where you can not see it. If it were me, and you want to replace the weatherstrip, but a new windshield frame, have it painted and a new glass installed. Then buy 8 new stainless steel windshield hinge bolts (this way you can just drill out the old ones that will either break or strip) and then you can just put the new frame in. They like to rot around the glass and under the frame where the weatherstrip sits.
Anywhere you go on the frames ten to get into a lot of work, and they are all in all cheap and simple to install. "if" your old windshield just happens to be broken, you "might" be able to put in a glass claim. At that point, most glass shops would be just fine with putting the new glass in your freshly painted frame.
we got lucky and only had one little surface rust spot on our windshield frame when we got started with it. There is a very good possibility that it wasn't the original frame though, we found a lot of evidence of shattered glass in the folds of the dash. We just sanded it good, primed with some self etching primer, and shot the paint with rest of the jeep. if it would have been worse, we probably would have done what firefyter said and replaced the whole frame.
@ Firefyter-Emt, thanks for the feedback, appreciate it. By and large I think I'm pretty lucky on the windshield, the only rust it has is the very bottom of the windshield where it sits in the recess of the cowl seal. The actual seal around the glass and all the other metal are in good shape, as are the brackets. I only noticed the problem because the cowl seal was in bad shape so I decided to replace it, and once I took it off I saw the rust.
When I removed my cowl gasket last night, I had a holy-crapload of sealant on both the windshield side, and the body side, and two of the screws were missing. Scraping that off took more time than the rest of the job. And I broke one of the zippers when taking loose my bestop.
I also found a set of prayer beads in the dash but that's for another post.
Registered Nurse Jeep Club Member #1 (I think...)
Verse 36: And He said to them, "But now, whoever has a money belt is to take it along, likewise also a bag, and whoever has no sword is to sell his coat and buy one.
[QUOTE=castorriver;12499613]When I removed my cowl gasket last night, I had a holy-crapload of sealant on both the windshield side, and the body side, and two of the screws were missing. Scraping that off took more time than the rest of the job.
I found all of the above same when I was replacing the windshield cowl seal and on top it I broke 2 bolts but that's ok I want to replace them all with standard stainless ones
Ready for my jeep adventures