The importance of measuring bell housing runout.

Since I am not an expert on this, I look at it like I do other projects where I'm learning as I go.
I often wonder if the tough time I am having is the same for others or if I'm making things harder for myself by doing it so wrong.
For example....
In 2021 when I used this dial indicator to measure runout on my own car, I bought a generic dial indicator and magnetic base setup from Summit. It was bulky and clumsy to the point that I couldn't set the gauge face in a way that I could see it.

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The center rod attached to the magnetic base was so long, it was in the way of clocking the gauge to where I could see it. It was difficult but I just figured that was how it had to be.
Yesterday I had the idea to cut back that center rod to end before the opening in the bell. Now, there is room to place the gauge where it can be read easily.

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