Hey guys was having a read through this whole thread and noticed very similar problems to what I was experiencing. The funny thing is that everyone has had the diff bush replaced but issue still there. I had the same thing done on my car but still had drive train noises and clunk which I thought may have been the box but was actually coming from the rear. I took my car to a real suspension place and had the whole underneath inspected and can anyone guess what was causing the problems??? The whole diff cradle assembly area, not sure what its called but that whole thing was left loose from when FRAUD done the last diff bush change. The whole rear end was loose and moving around, it had thrown camber out, the toe was all wrong, the car was crabbing and alignment was out and most of all I was getting clunks and thuds from the rear. The whole rear end was tightened up and now the car drives like new and I have no more clunks or thuds at all. One word of advice is if you have just had some work carried out by FORD and your bum is telling you that something isn't right its prob because Ford has stuffed it. It might be worth taking the car to a suspension place as that fixed my problem and I can actually now enjoy my car..... that's my 2 cents....