I've noticed the universal joints that are fitted to the Commodores from the VX Commodore onwards are "staked in" , yeah, Holden doesn't sell uni joints for the tailshafts, rather that you buy a whole new tailshaft or get a second hand or exchange rebuilt unit (I don't know why Holden did that for, maybe that's what they thought I wanted,watching too much TV perhaps). I was going to do a write up including pics on how to rebuild these units, that would involve a bit of measuring (using vernier calipers) and removing the staked points with a die grinder, I'm sure I can get those unis for $9.