i have done a couple on ED, EF AND ELs
i used a 1mm cutting disc in my angle grinde.
carefully cut through the nut until you are almost through
cutting parallel to the pipe
be very carefull not to cut the piping that the nut fits onto.
then i put the nut onto something solid and tap a stubby flat-bladed screwdriver in the cut slot with a hammer
the nut splits open a little, and the nut will slide off the end of the pipe
give the pipe a quick wipe over and tap the new nut on
there is a circlip inside the nut which grabs the pipe and holds it on firm.
i have heard of someone buying the replacement nut from fords and prying the o'ring out and then slipping it into their old fitting
if that works you could just source a 10c o'ring and use that
i have never tried that way though.
there is probably other ways of doing it too
dont forget to buy some power steering fluid from fords about $14, or equivalent synthetic stuff
ba replacement nut
