I have done it all regarding curtain rods!  My 70 Bus had Spring Door Curtain Springs, and these worked just fine.  My 85 Vanagon had nothing...so I used wooden 3/8" dowels.  Over time, they sagged.  So I upgraded to Walmart basic Curtain Rod; not the round ones, the formed steel ones.  These are VASTLY superior; the form of these holds upward/downward force in a remarkable manner.  They are cheap.  They are white.  As needed, two pieces form together to extend/retract to get just the right fit.  Flatten with a hammer on the end; drill a hole; and you are good for the next 30 years.  Again, the superior thing about these, is the ability to withstand Vertical weight of fabric...they are staunch...good looking...cheap....readily available.

    On Tuesday, May 14, 2024 at 04:44:18 PM PDT, Eric Caron <ericcaron96@comcast.net> wrote:  
 
 Hi folks, 

On my 85 the slider door curtain slides back and forth on a rail built in and the curtain is there waiting for when needed.

My 84 has a curtain that you must find then snap over rings to make a curtain. 

How have people improved the system?

I created a hack I like so far.

I purchased a stretchy cord and made loops of wire.  I placed the cord behind the upper buttons where the rings snap on.  I added small loops to my original curtain and threaded them on the cord.  The curtain now slides on the cord back and fort and when not in use is stored on the side just like the 85.  
        When the curtain is not in use the cord stretch s up and out of the way over the part of the slider that sticks out toward the front.  If forgotten down it is ok as the door just moves it out of the way.  But I think better to have it out of the way. 

So, I now have the curtain ready to go when needed and it is held up high by the cord, no sag. 

Just wondering if someone has a even better hack.

Eric Caron 
84 Westfalia