Need Help With Flywheel Thread

TT5.9mag said

Yea when they come apart, it gets scary in a hurry. The worst one I saw was posted here somewhere. I’ll see if I can find it.
Edited to add photos.
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And people still want to use 50 year old part like flywheels that spin up past 6k with a stock bell housing. I remember seeing some dumb **** like this at Sonoma on Wednesday for the local drags...