Originally Posted by
nerobro
First, the relevant information.
...
Front Hub: 100mm, 72mm across the flanges, so 14mm from axle face to flange face.
Rear Hub: 130mm, 57.3mm across the flanges. 50mm drive side, 30mm from the non drive side axle face.
Well, I know there's calculators out there, and I've used them. and well... here's the story.
Could someone check my work? :-) Please?
There's your problem. I highlighted the error. You don't enter the outside distance-flange to axle, but the inside distance - flange to centerline.
I stopped there because, if you don't get that right, nothing else matters.