Are you sure the window isn't starting to separate?

 

Here's the response I got from my email. He used two different products. One from eastwood the other from Jetco Products (link below ).
Eastwood was as follows:

Glass Polishing Kit for deep scratches. P/N 40030 Q

NOTE: Label Correction: Polishing Compound is suitable for tempered and other automotive glass.
3M Hookit conversion face 5" backing pad P/N 40030 A
3M Hookit Film A35 Coarse Green 5" dia. P/N 40030 B
3M Hookit Film A10 Medium Blue 5" dia. P/N 40030 C
3M Hookit Film A5 Fine Orange 5" dia. P/N 40030 D
Glass Polishing Compound P/N 40011 B
Glass Polishing Wheel P/N 40011 A


http://www.jestcoproducts.com/

 

This was my first thought also, is it a white haze, especially in the corners? If so, you may need to buy a new one, the glass is two layers and if it is hazing between the layers, a replacement is in order.

 

Hey Everyone,
Thanks for all of the great responses. I will try the some of the things mentioned as soon as it stops raining. I will also look into some of the products mentioned. There is hazing around the edges, and slight groves from a previous owner that didnt know how to replace the wipers! so I will replace the front windshield down the road. I'll let you know how it turns out.
Thanks

 

If its the windshield and the laminate is distorted then there is nothing that can be done besides a new windshield.

 

I just ordered this kit from Eastwood for both the Mustang and the 69' Charger R/T. Hope it works cause the Charger's back window looks terrible, but I don't want to replace the stock glass.

Tom
Bryson City, NC