I had the same question with my 47 AD. The glass is not cracked, just yellow, slightly bubbled and lightly chipped. After some research on flat glass for my Jeep CJ7, I discovered that flat laminated glass is the least expensive glass for any automotive application. Thus, most good glass shops (think glass table/desk tops) can cut glass for you based on your patterns(existing glass).One local shop here in Denver offered to be competitive with any prices I could provide him. I thought the help to local business was cool. In glass tints were available as well.