I've recently noticed that the drilling of the hole in the stud for the brake pedal push rod and brake light in a 65 66 brake pedal is either
horizontal or vertical. I only have 66 Assembly manuals and it shows the hole to be horizontal. I've also found 6s033 to have a vertically
drilled hole and I know it is a 65 model.
So, is the vertical vs horizontally drilled holes for the pin a 65 / 66 change? If so, why the change? Serviceability?