Ok, I got under there and see that there is a mess there with holes filled with bondo and what not. I went home and looked at mine and see the same as in your photo.
So, I know where to drill the holes. Does anyone have a link to a good photo of these mirrors mounted on the truck. I swear it looks like I have two right sides. They are totally different with the "Correct" right one being that snake looking thing. But the straighter "left" one looks like it could only mount on the right side.
I have searched around on the net but never find a good clear picture. It doesn't need to be a close up or anything, just a decent picture of both sides of the truck with these original mirrors.
Brian