not sure how different they all work, but the one on the rear of the KK i needed replaced had a small wire circlip (i guess you'd call it) that needed removing to get the ball off of the socket so to speak, and also needed a clamp to hold the strut in position length wise whilst it was removed. easy enough to do now i've seen it done, but i doubt i would have worked out how to do it on my own had i not seen it done by someone else, i thought you just needed to undo the ends with a spanner when i was looking at it, but thinking about it now it's obviously under pressure.
