That dimension cannot be correct.
The hole cannot be spaced 65mm and the plate be 65mm as well.
Does that suppose to be 75mm?
ORIGINAL: Silversurfer
The hole centers across the top and bottom of the backplate are 65mm, center to center. The hole centers from top to bottom are 78mm, center to center. The back plate measures 65mm by 88mm, with the long dimension running vertically.