How do you repair rusted ford k a sills?
Depending on how bad the rust is, your best bet is to wire brush
the rust down to the metal, a drill and wire brush attachment is
good for this. If the rust has gone through, then this will need to
be filled ( p38 body filler is one I have used before). Treat with
a good anti rust paint, then paint back to original colour - this
dose not nave to be a good match as the sills are not easily seen
from a standing position. Hope this helps...