After an accidental break of the mirror, but not mirror mount, this mirror was an easier fix than replacing the whole mirror/mount from inside the door. Be aware that for some Rangers the manufacture mirror is flat and this one is convex. It would not stick on top of a cracked, but still present mirror as it is a bit too big, and convex. It is really designed to be inside the rim on the mount. I was able to pry part of the retention rim off the the mirror mount and slide it in from the side. I did use silicone to keep it from moving around in the now looser retention rim. Since it is convex, the foam adhesive strips provided would not stick to the flat mirror mount, making the silicone more important. Overall I am pleased as my husband really did not have the time to replace the whole mirror/mount from inside the door and this I could do. If I could have put this mirror replacement in without having to pry the retention rim, I would have given in five stars.