The most obvious place would be the wheel wells and any little ridge
etc. that wheel "throw-up" could settle and accumulate.  Also any
ridges along the lower edge of the sheet metal.  Looking here would
not involve standing on either foot as it is best done whilst lying
on one's back.
>
> . Can someone recommend a place where a fellow who
> is presently not allowed to use one leg look for salt buildup to
> check this?
>