Hi, im having problems with my Center diff also,
Is it possible for viscous to fail so hard it acts like open one?
My STI has transmission whine from 3 to 5th gear that increases with speed and in snow car acts mostly like fwd, i can make it rwd by pressing footbrake. I can do burnout etc with handbrake on if i like!?
I made this (bad) video to show how open the center diff works. Trans is ty752vb5ba (4.44) stock is 3.90 dccd, im figuring out if trans has broken viscous or uncontrolled dccd. Im sure there is no dccd plug on top of transmission.. Car doesn't have any binding etc, only whines