A piece of advise....Do not... I repeat.... do not attempt this by yourself with the windshield in the car . It can be done but I have spent countless hours trying to get the panel closest to the windshield tight enough and tucked under the seal to the griper teeth and today finally figured out a way to do it although it is killing the arthritis in my hands and elbows. Back window is out or it would be impossible. I didn't want to take a chance breaking the brand new $ 350.00 windshield by taking it back out. Lesson learned ...there is a proper order to working on these things....follow it. The windshield was one of my 1st purchases and should have been one of the last. I had a member offer to come and help but I'm a stubborn old fart and absolutely hate asking for help but at least I got it under control now. :banghead::banghead: