Wish I would have read this thread before my build. Built my buggy Thursday night left for racing friday. I spent all of practice taking the tranny part. The diff would loosen its self up. I did what the manuel said word for word. To sum it up a local read on here were one of the washers for the thurst balls is a touch wider than the other. I missed all of practice and first Quailfier but buggy was fun to drive after that.