I've changed the uppers recently using the guide below. Fairly straightforward to do and I found the 'cup' type ball-joint separator (available from Halfrauds) the easiest to use in splitting the ball-joint
Also, you'll need to remember to torque-up the wishbone pivot bolt once it is back on the car with the suspension loaded up to ensure that the bush is tensioned in the correct start position, not whilst suspended on axle stands as the suspension will be on 'full droop' meaning that the bush will face excessive twisting forces if tightened back up in this start position. A rubber bush works to control movement and vibration by being twisted in both directions in its pressed-fit housing, as the suspension in compressed and unloaded.
You'll need to leave it relatively loose when locating it back over the strut mount so that there is some pivotal movement to assist you. Can be a bit fiddly getting it just right and you may find that a jack under one of the alloy bottom legs of the strut useful to help you push things back up into the mounting holes
Torqueing the nut and bolt up nice and tight is probably impossible to do with the wheels back on (unless someone has managed to find a way?), so I carefuly lowered the bottom wishbones onto car ramps, thus putting the suspension under load first. If it's left loose, then the bushes don't get to do their job properly.
Last edited by MarkMK; 20-11-12 at 13:38.