Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
John, helps if you say what bike mate
hopefuly my pain and agony and oddjob's and bryan's comments in my post at http://www.sohc.co.uk/index.php?topic=5571.0 are helpiing .. hopefully not confusing or putting you off have a go yersel John
In that case you will need the slider from a 550 or a PAIR of forks from a 550 (internals vary so fitting just one complete fork is not advisable) plus if you look at the other thread on twin discs I linked a word document with a How To.