Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
I have a good 550 steering column one that came to me foc yours for the postage cost only.
I have stem & nut iirc.If it's just the nut I have one pretty sure - chrome is not perfect but all the threads on the stem are fine. Just e maim me my address is on my profile. Ted