At the moment, the only thing that comes to mind is that the new holes were added in the wrong direction.
As I mentioned earlier, the newer 75 scouts have a different width in frame compared to your 65 Scout. Which also translates to a slight difference in axle width. Also, translating to the locating hole in axle spring pads on axle housing will be slightly different.
This is all taken in account with stock oem leaf springs. When, as you're experiencing, we deal with po virus work arounds, some ingenuity needs to come into play to correct the problem.