71 A body sport mirror help...

You have a 73 mirror in a 71 car. The control is longer on 73 and newer mirror it takes all three as pictured.
The mirror housing and the pedestals are the same aren't they?..The mirrors I just put on the car are reproductions I purchased from Classic Industries..I have a pic of them I posted earlier in the thread..In the description of them they have them listed as 70-73 mirrors...Being reproductions they probably didn't get the control 100% correct.