I just installed a Torsen T2 (not T2R) in the Mustang. Everything went together great with all specs. in line. I got everything installed and while up on jack-stands w/ the wheels on I was going to make sure everything spun properly.
As I clutched out in 1st gear both wheels spun well but right after the clutch fully engaged the left rear wheel stopped. I spun the rear end to 20 mph and the right side worked perfectly and never stopped. I could give a blip on the throttle and the left side would spin slightly and then stop again. Is this the way a Torsen works? I am finishing up some front suspension work tonight and was going to take it for a quick spin around the block. Do I have a problem here?

All feedback is greatly appreciated regarding this issue. Thanks everyone!!