Hello..
I needed the part that the gas cap screws into.  I went to a junk yard and found the part, but also realized that this part is pressed on to the Fuel Filler Neck so I just took the whole thing... When I got home and took my filler neck out there was a plastic cage with a plastic ball inside that is on the end of the filler neck that goes into the gas tank..  The one that I removed from an 86 vanagon didn't have that part on it... do I need the cage with the ball?

Thanks in advance
Shannon
91 Vanagon