Thanks Rich,
I remembered I still have my stock hub and ring assembly, It think I'm going to try and measure off that and make a template to check my BHJ unit. I'm assuming the stock parts are correct. If I have any issues I'll be giving you a call.
If anyone knows the correct offset from the keyway That would make things a little easier. About 5 min in AutoCAD and I'll have a custom degree wheel to check it.