lol, thanks. Here is the original...
[ATTACH=CONFIG]385701[/ATTACH]
[ATTACH=CONFIG]385702[/ATTACH]
and the correct example i found on an EBay Completed auction
[ATTACH=CONFIG]385703[/ATTACH]
So by knowing my original diameter of the disk part, I could then extrapolate out the rest of the dimensions. I am checking the drawing out against the original tomorrow night.