G'day Mikoo, It seems to be a common opinion that WD40 isn't any good. I personally consider it a waste of money and use INOX. It was first recommended to me by my father in law who was a wharfy (they used it on the wharfs) and took his fishing really seriously. Be careful using force or impact on the end pieces as Jack said they're cast and cast can be easily broken. Have you considered using electrolysis to dissolve the rust? It may release the axle?
