Upon disassembling my front end, i discovered some festering rust that
began to eat into the frame.  There is a rod that comes out of the lower
control arm that is for adjusting front end alignemnt.  It inserts into
the frame with large rubber bushings.  When I removed the bushings, it
was all rusty inside and completely invisible from the outside.  The
steel sleeve that inserts through the grommets and through which the
steel rod passes was rusted nearly all the way through.  These parts
were very worn as well and I need to replace all of them.  The rust was
so bad that is pitted the frame member where the rubber grommets are
pressed against it.  Water apparently gets trapped in there.  I had to
grind it off with a wire brush wheel and drill.  I can see how this
could cause enough damage to require surgery on the framemember.
steve