Well I have a brand new Tornado BB that was taken through a 6 tank break in and is currently at 8 tanks. I have been having trouble tuning this car and while running a tank today it stopped moving. The engine will start and run just fine but it will not move at all. After killing the engine I noticed that it will roll forward just fine but the wheels lock up trying to roll it backwards. Could this be a problem with the clutch or possibly the transmission.

Any help would be greatly appreciated,

-Derek