Hi all, working on a re-chassis of a Series 3, and moved the engine and gearbox across last weekend. I've just found a "spare" piece sat on top of the old cross member, pictures below. I can't see it on a parts diagram, but I may be being blind. Any views on what it is and where it goes? I'm hoping I don't have to lift the engine out again, but would rather do it now than later.