I wondered about that, lots of axle and leafspring mounts to hinder the operation, but I guess with a lot of swearing and strained muscles it may be possible!
Phil C
February 2010
there is a grommet covering access hole in back plate just above axle, you will need a bent screwdriver or similar,will be a bit easier with wheels off -but still awkward to do! but you dont need hubs off.