Sorry just read the answers again. Kossienutter - when you say "There won't be enough room to knock the shaft against the inner cv spring I'm afraid."
are you saying you wont be able to feel any free play left against the spring. We were trying to test this by knocking against the shaft where it protrudes from the hub with a soft faced mallet ( with the big nut removed so it could theoretically slide back in to the hub against the spring) Thanks again David