rlepecha said:From what I gather, the idea is that the plates do not rotate in the bushes. The inside of the bushes are designed to twist with the plate and the outside is supposed to stay put, so the twist is provided by the elastic nature of the bush.
Hence the use of talc rather than grease, it initially lubricates the bushes for assembly but once the bush is seated it shouldn't make the plate move independently of the bush.