On my 66 the centerline of the front screw is about 2 1/4' ahead of the front edge of the vent window frame where it meets the bottom frame.
Hope it helps.
J
BTW, mine are also non remote/standard.
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'66 Mustang Coupe- AKA "Lenore" *on disability for a (long) bit*
'93 GT Mostly stock AKA "Fawkes"
Rice Haters Club Member #239
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