I've done lots of searching and haven't been able to find anything about this. I have been frequently noticing wheel hop when taking 90 degree turns into parking spaces. The front tires seem to be gripping and skipping on the pavement. It pretty much only happens after highway driving for a while when the car is good and hot. This is the same type of thing that you would expect from a 4WD truck on dry pavement but the AWD shouldn't have this problem. Has anyone else experienced this? Is it a problem with the diff? I'm driving an '03 stock WRX wagon. Thanks for the help.