I have a 68 bronco. I have had since 77. The windshield has never been lowered. The bolt on the passenger side broke off. I was able to lower the windshield and the bolt is broken off flush. I drilled it out to tap it, but when doing so the flat metal inside the windshield came loose. Now I can not steady it to tap it out. Any ideas? I was thinking of welding it in place and then taping it, but I scared it would get to hot and melt the windshield casket.