Installing front windshield, '70 Dart tips?

The string, or rope method is only used on the REAR windshield. The front windshield isn't installed that way.
Install the gasket on the car, and use a glazing compount under the gasket where it sits on the car. Lay the glass on the gasket and starting from the BOTTOM, work the glass into the groove. Use plastic tools to work the glass in. I spray the glass with WD40 to help it slide into place. Once the entire piece of glass has been installed into it's rubber channel, go around and lock it in. WD40 will not harm the paint so don't be afraid to spray it when needed. I can install a front windshield alone in about 30 minutes including reinstalling the trim. Once you've done it once, you'll be a PRO!

The rear windshield is installed with the rope method. Install the gasket on the glass, then wrap the rope around the gasket, taping it into place. You want the 2 ends of the rope at the BOTTOM center of the gasket. Pull the rope out from inside the car and work it onto the car. A helper outside will make it easier.
The rear window is MUCH more difficult to install then the front one.

Good luck!

George