My Bronco has them, and I was looking to replace one them as well. Best option is to go to a junk yard, and see if you can find something. It won't be easy though. You can also go to your local Ford Dealer and order the mirrors through them. They only sell the pair of mirrors so its pretty expensive, but since you need both of them you might as well see what they will charge you. As I remember, they wanted to charge me something like 600 dollars or something outrageous. But if you really need those mirrors badly then I guess its worth it.