Having removed the wholething from the car you then need to separate the joint from the shaft.These are sometimes held on by an internal circlip which means that a sharp tap with a heavy mallet should prise it apart. Or, a circlip that you need to spread apart. Cut the oldboot off and clean away as much grease as you can then turn as if on full lock you should be able to tell which type it is. You'll be able to do both boots from one end.
Bobbottom
April 2009