I bought the Typhon after having such great luck with the outcast. I ran it for less than 5 mins and my rear wheels started spinning much slower than the front. When I press the throttle while holding the car on a loose surface, only the front wheels spin now. (keep in mind this car is brand new, running less than a few moments) I checked the front and rear drive shafts to make sure they both spin with the same speed as the center diff. I also checked the cups behind the front or rear diff to make sure it wasn't loose as well. I checked the dog bone pins, pinion gear and listened for any funny noises. All of this worked as it should..... I can actually hold the center driveshaft and cup - leading into the rear diff, and still spin the rear wheels. The rear wheels both spin and I feel no pressure on the driveshaft to make it turn. It's like it isn't connected. Anyone has any advise? Its hard to believe the rear diff is damaged so soon.