Had the VX SS serviced recently and the mechanic phoned to say the front swaybar link pin bushes needed replacing, one of the bushes had split, so I said go ahead and replace them all, the link pins on my VX SS are the later ball joint type with the rubber bushes at the other end. I checked when I got the car home and there were 4 new bushes fitted with a nice coating of some sort of red grease on them. Well the last few days I have been hearing a clunk in the front end when going into the drive or turning, just had a look under the car and one of the new bushes is split and half hanging out. What would cause it to split in under 100km, faulty bush, wrong bush, installed incorrectly any thoughts before I ring the workshop on Monday. Appreciate your thoughts.