[BobbyK]

I found it.It's the very last reply in the link.
http://67-72chevytrucks.com/vboard/s...hlight=mirrors

It says:
"The drivers side is 6 7/16" from the front of the door to the center of the front hole. Then 3 1/2" from the top of the door to the center of the front hole. The top of the top rear hole is 2 7/8" from the top of the door. The passenger side mirror is 8 1/4" from the center of the front hole to the front of the door. The top of the door to the center of both front and rear holes are the same as the drivers side."

I'll be installing my passenger side mirror this week.:p