A while ago I mentioned that the Ka had been creaking from the n/s/f for a couple of years and that I thought it was down to the lower arm bushes which had started to come adrift after only 8k miles.
There were a couple of people who said that the creaking would most likely be coming from the lower arm ball joint and not the bushes. At the time I used one of those hypodermics that you get with inkjet refill kits to get some light oil under the ball joint gaiter and it made no difference.
Yesterday I replaced the lower arm assy and I can confirm that the creaking was definitely caused by the bush. The ball joint was free, smooth and noiseless. Inserting a bolt or bar through the bush and wiggling it reproduced the creaking noise that we used to get when installed in the car.
I used a non-Ford lower arm @ £34 because I figured it couldn't last any less that the original Ford part which as I mentioned started to fail at
8k and was completely knackered at 25k miles.