Here is a perfect example of why it is hard to believe what previous owners tell you.
I felt bad when I wasn't able to go to Mid Ohio and catch him racing a couple months ago. After seeing this, Nope. I was told it was rebuilt right before he found the A-555 that is currently in it. You look and see if it was rebuilt. Sorry for the low light, but you can see what I'm talking about on the larger gear.