I had to open up the in side of the wind shield post with a Die Grinder and I also had to compressed the windshield frame in a vise . I used a piece of rubber to protect the aluminum wind shield frame. I did put a small nick in the frame . I wet sanded it down by starting with 320 , 600 , 1000 then 1200 grit paper. I finished it with Mothers Aluminum Polish. You can't tell it was ever nicked and it looks great !