Ed, did you put the MLV facing the out side door skin or put it towards the inside of the cab? I’m about to this, glad I saw your post. Nice Work!!I kept the vapor barrier (well actually replaced the trashed stock material with new 6mm plastic) and added 1/8” thick Dynaliner to the back of the door cards. This coupled with Dynamat inside the door makes for an incredibly tight and quiet door.
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You can see that I left it about 2” short of the door card edge so that the extra thickness doesn’t prevent the door clips from fully seating.