I used Dynamat everywhere I could put it in my 53 including the doors. Then I did a YouTube video showing and hearing each door close one with and one without. This should be the link.

Dynamat

1949 Chevy Carry All
Follow the resto in the Project Journals

1953 Chevy 5-window
"Frame off Restoration"
Follow the resto in the DITY

Beginning to End Slideshow
More images in Flickr
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Please don't tell my wife how much this thing cost!