The Stovebolt Site Forums The Shop Area General Truck Talk Paper or plastic defroster ducts?

I just put the wire/cloth ones in and they work great. They fit everything snugly to the point where I felt no need for any kind of clamps. The only "problem" I had was with the original metal passenger side defroster duct, the way it was made the opening was too large so I had to split the duct and use cloth tape to hold it on.

So I guess this is a case of an original part not being made correctly rather than the aftermarket part.