I've got a squeak from the front passenger side wheel when going over bumps. The dealer tells me that the rubber bush the anti-roll bar is attached to is split, caused by corrosion of the arb, which has expanded. The worst bit is that they say I need to replace the whole arb together with the rubber bushes, because of the corrosion. Any ideas whether the corrosion can be removed and treated instead of replacing the whole thing, because the dealer is asking £428 for the whole job. Apparently they need to drop the subframe in order to do this (2.5 hours labour) Any suggestions peps?