YouTube channel sixtyfiveford demonstrates how to cut new mirror glass for any automotive mirror that needs it. You can even cut specialty pieces that only cover a portion of your original mirror and set it at an angle for blind spot viewing.
Target or Walmart: For $5-7 you get a 12″ X 48″ piece of mirror glass
Note: Do not use the scissor cut fake mirror glass you can buy at auto parts stores. You’ll feel like your at a carnival fun house every time you look in the mirror.
Glass Cutting Oil
Cutting oil is not completely necessary but any thin oil, even WD-40, would work — motor oil is too thick.
$5 Glass Cutter
This glass cutter is inexpensive but works awesome!
Shoe Goo ~ The Duct Tape of Glues
Optional: Diamond Burrs and Blades
You can buy diamond burrs and blades that will help smooth glass edges but it’s really not necessary unless you have a lot to remove.