In cleaning up some light rust on my '85 I noticed some fairly bad rust
through on the front wheel arch foot step.  The rust is not visible at all
unless you remove the rubber pad.  Right side had fairly small patch
requiring a 1"x2" welded patch.  The left side is much worse and will
require probably a 4"x6" patch or larger.  Just a warning to everyone to
regularly pull up that rubber pad and check under there.  The holes in the
metal apparently aren't sealed off all that well by the rubber pad "barbs"
and salty water etc. must settle between the rubber pad and the step.  I
never pulled up the pad to clean out under there and I'm paying for it now.

Mark