You will need to replace the lower wishbone bushes that are bolted to the crossmember and the forward connecting rod bushes, that go from the lower wishbone to the anchor point near the rear jacking position.
Inspected the bushes today looks like they are worn out. I found out that the bushes can be removed. I wonder if the bushes used on later cars are any stronger or if powerflex bushes are available for the 166. More investigation required!