unfortunatly, I just bought one for mine and yes I was lead to believe you didn't have to drill holes. You do! It just about killed me to drill holes in my beloved bronco... You don't have to drill much, but you do. I did not drill the holes for the snaps on the windshield frame.... yet. Once it rains well see. Also I did not drill the two holes in my tailgate for the piece on the top of it. Again, once it rains....
The instructions are a bit confusing, so read and take your time.
It's a nice top though.
I have some great modifications for it that they could have done if they wanted to engineer it so you dont have to drill holes. And a way to make it fold down easily if you have a family cage.
Anyway my 2cents