Some of the other guys have reported ball joint problems. You might want to check some of the other threads and see if you can pick anything up. I know Venom XR
has written up about this a couple of times. XR Strider started a thread a little while back about AU problems and so did StevenAU If I come across the threads again in my travels I'll let you know.
Welcome all the same, and I hope you get us much help from the guys in this forum as I have.