Same here as I thought the Buick trunk floor I bought has them too.
I've been waiting for a picture like this to show up,does any one know what the h*ll that rod that's welded inside the panel is for?????? I've seen them a bunch of times and have never been able to figure out it's purpose.
Not saying that isn't the reason, but, doesn't sound right... I mean, they could accomplish the same thing by just putting a thicker coat of wax on the panels being welded and let it drip down.I asked that question the other day to someone else who was also working on this area of our cars. His answer was...the rod is coated with some kind of wax sealant and held to the inside of the panel with the square adhesive pads. Since the automotive manufacturing industry had not yet evolved to dipping whole parts, the heat from welding the panels together would melt the wax sealant which then drained into the bottom seam to seal the intersection of the panels from the inside. Hopefully, this explanation suffices.
I want to seal my repairs from the inside and will do so after painting. I have to wait since most sealants have chemicals which will negatively effect paint jobs by creating fisheyes. So, I plan to use the round 1.5" hole (visible in the inner panel) to spray some type of cavity sealant/sealer.
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