Jumper Cable Add-Ons

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pickup,car engine,jumper cables,engine
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From the submitter:

"I had to submit this pic of a modified set of jumper cables my buddy posted. This is on the same truck I sent you the solo cup tail light pic that was posted on here. My buddy Billy is a one of a kind, folks."

Missing Something, Bro?

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engine,truck,semi truck,missing engine,missing cabin
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I'm sure what it is... the answer is right in front of me though...