The importance of measuring bell housing runout.

I am trying to look at yet another issue with our flawed cars, from a humorous angle. I'm not carring enough, give me some more, and I just got the engine and trans back in the '69 ! Probably, 97% of us should just leave our cars in the garage, there are just too many flaws that we don't know about!
I'll check that the next time I have the engine out. I never would have thought about the bell being square to the block. Next time, I'm driving it now.
Let's be safe out there!