The front upper wishbone bush is unfortunately not the steering rack LH end inner bush. No surprise that MMC wouldn't give them a part number to allow a cheaper repair rather than possibly sell a larger, more expensive assembly. MMC don't seem to give anything out and their suppliers are obviously sworn to secrecy as well. I doubt that Quaife will be willing to sell steering rack components, they won't help with bevel boxes. It may be a case of stripping a rack down to see whats inside.....Dave Hodgson?
Does your garage have a good number for the wishbone bush that they used to replace your worn one M3W55? It may well be useful in the future.
