The inner balljoint is a tapered so will need breaking, and the outer balljoint that connects to the lower part of the hub is a parallel fitting so it won't. Then it's just the two bolts that hold the rear bush on.
Easy enough as long as the bolt holding the outer balljoint comes out. You can use the weight of the car to break the inner balljoint, or if it's tight the weight of the car and a bit of shock loading, or if it's very tight both of those and some heat on the frame, or if it's tight as...... then add a bit of freezing spray to the balljoint, and if it still won't budge then more of all of the above till it does.
Bit more info here as Pete has recently done his:
http://www.the75andztclub.co.uk/foru...d.php?t=129830
Mike