Yes, did it myself a few weeks ago on my 1988 RRC Vogue SE. They will most likely be tight on the shafts, so it helps if you have a couple of suitable sized wedges to knock in between the end of the arm and the nuts holding the rubber grommet in place.
Big thanks for the reply saint. Sorry about not introducing myself, I just got a bit carried away as my m.o.t is due tomorrow an my wipers are fallin off.
There's a small spring 'flat' that needs to be levered up (you'll see it just under the arm, where it hinges up) & it's a good idea to place something like a towel on the bonnet first, as if the arm comes off suddenly (which they often do) it will protect the paintwork.