I was trying to find the source of a power steering fluid leak around the
reservoir on my 1985 1.9L Camper when I noticed the that large o-ring in
the cover is missing.  Unfortunately, since I replaced some of the lines to
the reservoir in January, I'm undoubtedly the one that somehow lost that
o-ring.  I can't find one listed with any of the vendors.  Has anyone found
a replacement anywhere?