My windshield had cracks on both sides from rocks on the highway before I tried to slide off the old mirror. The mirror will come right off, but after trying for over an hour, I got frustrated and tried force. This is what did it. The guy who installed my windshield informed me of the correct way to remove the OEM mirror. You just have to use a small (4mm) flat-head. You insert it into the bottom center of the bracket, and fish it to the back until you feel resitance. Apply the upward force, and also gently try to slide the mirror up off of the bracket. There is a small spring tab at the bottom. This is not the one to concentrate on. If you look at the new mirror's bracket, you will notice a larger, more verticle tab that you will not be able to see until the mirror is off. Again the intructions are VERY detailed.