What is this part called?

No idiot in thinking it would swap over. I understand your reasoning. One other thing with mopar sb aftermarket balancers. They all come with timing marks oriented on drivers side(which is 70+). If your 68 is original your timing cover will have marks on pass side? Is this the case? If so you will need to remark your new balancer AFTER finding true tdc.
Heres my new Trickflow balancer. I need to remark it.
Thanks 4spd. The original balancer is definitely NOT good. That's why I swapped to an aftermarket. Idiot me, thought the dust shield was supposed to transfer over, so I pulled it off and put it on the new balancer.

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