Bill : Thanks for remembering to take that measurement along the lower peak (ridge) line. That 17/32 is 3/8 more than I measured on the template. However, remember that the template I measured from was for the RH mirror. While one would think that Ford would have made the Template for the RHU Mirror to be in the same relative location as the Factory Remote LH Mirror, this was obviously not the case.
Could you also measure the perpendicular offsets from the lower peak line to each of the screw mounting holes, so that I can revise them if needed. Also, from your previous picture with the rule showing the centerline distance between the two screw holes, it appears to be 5-27/32. Please confirm. I will then make a new template tailored to the Factory Remote LH Mirror so that, if needed, someone can duplicate its location.
Thanks,
Bob