Some members just like to play games

This is what we are dealing with now days. The caption is:

What part of an engine is this?
And should it be changed out?
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Yea, this place is lacking in tech. I asked what grit sandpaper to sand my rotors with. #80-120-220 old use DA sandpaper frpm.friends body shop and a 2x4. No one gave any tech.
I was forced to order The best new Raybestos E-Coated ones they sell! Since i could not restore mine to like new.
A while back a guy asked if there was anything he could use ti make his tires new again nice and soft as were like new tread but were hard. No one on Moparts could help. The whole internet sucks now.
I think the thread was straight forward "how to rejuvenate tires"