prop vibration at 80mph

[adem.csl]

Originally Posted by uncle benz

My apprentice, Jamie, has just replaced the centre bearingk on his e46 m3. Much to my annoyance he didn't mark the two halves of the prop before he split it. Even more to my annoyance he moved the thing while my fingers were in the uj, but thats another matter... We looked for some witness marks and took a best guess of which spline it was on, but it now has exactly the fault you describe - 80mph on the nose and you can hear/feel it.

don't know How true it is but I'm gonna try this.bmw said that to realign the prop both uj either side centre mount must mirror each other or face same way as each other.meaning they need to match