Oh just a tip before trying to remove the ball joints from the wheel carrier, turn the carrier upside down and poor some methylene chloride into the back of the threads, leave it for about 30 mins or longer and it will break down the blue loctite, it also works on the green lif you cannot get heat to it, I have found that heat dose not always work, this will stop the ball joint dragging out the threads. you can get some from Ebay or Amazon, about £6 for a small bottle.