mike wrote:

manufacturers in two different styles: one with two screw-in mounting holes, and another with one screw and one stud. The latter was meant for the very early 1600s where the mirror was mounted way forward on the door. The stud actually went through the leading edge of the door sheet metal and was visible with the door opened. Took the factory a year or so to figure out that with the mirror in that position, you couldn'n open the vent window but just a little. Then they moved it rearwards a couple of inches. Mirror history lesson for today. mike

Really, I have the mirror in the far fwd position on my 67 and I've never had trouble with the vent window? Maybe it won't open to the maximum point, I don't think I have ever tried opening it all the way. I'll have to experiment later...
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Jeff

1967 1600-2 "Florida"/Brown w/sunroof - 6-volt all original 163k mi

2006 M3 White/Red - 6spd Comp Pkg