The fwd 3.8 uses a similar heater hose setup that goes through the tensioner. They have the metal flange you would need to connect a regular hose. I replaced a belt tensioner on a 2000+ impala and I think it came with them, or if someone has a take off from a W body car you could probably salvage them.
I will look on the parts computer tomorrow and see if there is a part number for them
The part number for the new hose is actually an upgrade kit to convert those plastic things to the metal flange.
http://www.hawksthirdgenparts.com/95...wgmdesign.aspx That is the best picture I could find. The two metal pieces on the bottom left are what I'm talking about.
Edit: Found this discussion on another forum, good picture but it really doesn't offer any useful information.
http://www.w-body.com/showthread.php...-98-GP-3-8-n-a