""""A typical scenario leading to a cooked VC would involve a syncro with
tire sizes that vary slightly in treaddepth.  The syncro is regularly driven
at highway speeds for hours at a time over a period of time.  Eventually,
the driver notices  binding in the drive train whenever she pulls off the
highway into a gas station for gas.  It may be subtle at first.  Eventually,
though, as the fluid gets cooked and ruined,  the wheels seem to stiffen or
bind much easier than before, and ultimately at the slightest turn of the
wheel.  When it gets bad, the drive train may lock up completely in the
parking lot at very slow speed upon a relatively slight turn of the steering
wheel.  This total engagement of the drive train puts tremendous strain on
the components of the drive train when the van is moving at speed under
power.  With continued use, the transaxle soon fails, the drive shaft and CV
joints are also strained.""""

Thanks Sam, and viva Internet... thanks to the peoples who share technical
informations over this one... of course, this is from the www.syncro.org web
site...

Ben
http://www.benplace.com/vw2.htm