Thanks for the pic I don't have my S3 hubs beside me to compare them. But hopfully they are the same. I don't have the cast wishbones unfortunately but I do have S3 ball joints to fit. Neil.
If the S3 balljoints you've got are the same as TT/R32 etc ie have bolts sticking out of them, then you're going to have to hack them to pieces to get them to fit into a Mk4 wishbone. It has been done but is a complete faff. Much better to get the proper wishbones, but then you lose the mounting for the Mk4 ARB so you then have to swap a S3/TT style front ARB, and to do that you also need front struts with a link on it to take the ARB droplink, unless you are lucky and find a set of wishbones with the little nub of metal sticking out that can be drilled and tapped for your mk4 ARB link. See how complicated this gets once you start.
