Strange things

Can anyone identify what these thing are? Can I discontinue/ delete them? The smaller thing reminds me of an early voltage regulator. It sparks when grounded. I bothered it plugs into a broken thing. The other gizmo broke when I was working on cluster. Car is a 74 Duster Any help would be appreciated. Thank you!

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Oh wait! The second image shows a busted seat belt interlock module, if you have a 74 you need to search the thread on how to bypass it.