After the drift day I found out my diff (like all of the R33's that day) just didn't want to spin both wheels properly, no matter how much encouragement (or abuse:D) I gave it.
Now some people were looking straight away at locking diffs, but I got to thinking - all of the diffs out on the drift day must have been at least 80,000kms old and probably not treated too well and could more that likely do with a rebuild.
So I pose the question - anyone know of a good diff rebuilder in Perth?