hi people Ive got a slight problem...i don't know if it is wheel spinning or if the nut on the slipper clutch is loose, when i put the car on the floor and drive off its fine and when i hit the high revs it just goes crazy lol. I'm not sure if its the slipper clutch? when i put it on a block all wheels off the ground and rev it up it seems fine?...when I'm on the floor and i go to tear away its like all four wheels are wheel spinning. its also hard to turn so it could be wheel spinning but I'm really not sure...any ideas? how will i go about tightening the clutch to stop it slipping to much and how do i go about testing it to Evan see if its loose