Jordiee,

It is exactly that sound. I completely forgot about your video mate. Mine is still very quiet, and it happens only 5% of time. It has exactly the same symptoms ie no sound when braking, turning the wheel by hand does become harder after a bit although it is the same on all of my wheels.
On MY99 WRX, which diff is open and which is VLSD? Do I have to raise all 4 wheels to turn one single wheel?

Adi