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Unknown rubber plug found.

klousgt

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Location
Dallas, Tx
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2008 Mustang GT Black
Found unknown part in trunk:

It's an oblong rubber plug part number 378770-S. It does not match any of the round rubber plugs in the bottom of the trunk lid nor can I find any plug-able holes in the trunk that it fits.

Found online apparently these are for the "inner frame rail" plug http://www2.cougarpartscatalog.com/store/ProductReviews.aspx?ProductID=13920

Does anyone have a parts hookup that can provide a diagram where this goes?
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s550hopeful

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Nov 20, 2014
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Location
High Desert Ca
Vehicle(s)
2018 mustang gt Magnetic
Found unknown part in trunk:

It's an oblong rubber plug part number 378770-S. It does not match any of the round rubber plugs in the bottom of the trunk lid nor can I find any plug-able holes in the trunk that it fits.

Found online apparently these are for the "inner frame rail" plug http://www2.cougarpartscatalog.com/store/ProductReviews.aspx?ProductID=13920

Does anyone have a parts hookup that can provide a diagram where this goes?
Hi, check underneath the doors by the side skirts. Back when I had an frs, some people were missing those. I believe dealer is supposed to put em where they go during pdi.
 
 








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