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Found loose stud under rear seat - Any ideas?

1SLwLS1

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I picked up my brand new Mustang from the dealer a couple of weeks ago and have been tracking down this weird sound, sounded like a screw rolling/wobbling around on some of the stamped steel (trunk floor, deck lid, etc.). I heard it when turning mostly, but occasionally under acceleration. I didn't have the time to drop it with the dealer yet (nor the real desire) and I came across a thread where they found a spare lug nut under the rear seat. After discovering how easy it is to remove the rear seats, I just popped it up at work and found this stud completely free under the passenger rear seat.

Any ideas what this belongs to so I can possibly track it down and make sure this one is an extra? What comes to mind is a manifold stud or something, but maybe someone is familiar with this piece of hardware somewhere in the vicinity of the rear seat? If not, I will eventually take it to a dealer, if I have to.

stud-1.jpg


stud-2.jpg
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Cobra Jet

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Just appears to be extra stud someone left in the car during assembly..

Each seat should have (4) Torx bolts securing the seat to the seat pan, so it's not a seat bolt.
 

Deleted member 35644

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Kinda reminds me of the urban myth of assembly line workers putting empty beer bottles behind the door panels....just to drive people nuts.

Could be a part that's used somewhere in the interior that got dropped, and it was faster to grab a new one rather than look for it. Or it could be from a dickhead on the assembly line.
 

StangTime

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That looks like the rear seat back stud. There is one on each side of the car at the bottom of the seat back. The short part threads into the body and the long part has a nut that holds the seat bracket to the body when tightened down. It was likely dropped during assembly and forgotten.
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