Originally Posted by doriftu

i built the ball diff and followed the manual and Chris Grainger's video to tighten it until the cone washer flatten.

Now, the diff feels like there are notches when I turn them. Did I damaged the diff by over tighten it until the balls notched the plates?

Should I rebuilt with new plates?

I loosen the diff and the 'notch' feeling goes away... its there only when the diff is quite tight.