Best way to fill trim holes in body?

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Joined
Sep 13, 2016
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90
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Location
Michigan
My Car
71 Base 6 cylinder, and 72 Base 351C
I am taking the Grande trim that was on the edge of the vinyl roof, and leaving it off.  What is the best way to fill the holes that are left?

I don't  think  bondo would work... Not sure how to weld them up since some of them I can't get to the back side to put anything..

Any suggestions on how to fill these properly? Thanks! Earl

2017-11-18 14.55.16.jpg

 
I mig welded the lower chrome trim molding holes on my Mach 1. I placed a piece of copper behind the ones I could get to and the ones I couldn't I just used quick bursts with the welder allowing time for them to cool to prevent warping. After that I ground the welds down and skim coated with filler and finish sander. Hope you this helps. Ryan

 
I mig welded the lower chrome trim molding holes on my Mach 1. I placed a piece of copper behind the ones I could get to and the ones I couldn't I just used quick bursts with the welder allowing time for them to cool to prevent warping. After that I ground the welds down and skim coated with filler and finish sander. Hope you this helps. Ryan
+1.  Pretty easy to do with a mig welder.

 
If you're not much of a welder, I've used short thread fiberglass well in some smaller holes.

 
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