SC10 Truck help

[Fast Eddie]

I have just bought an SC10.

It was a standard model with all Factory Team upgrades other than the ball diff. Is this a necessary upgrade?

Power comes via a castle creations short course sidewinder combo and I am a bit of a novice so accidents do happen

Also I will try to jump the jumps if you know what I mean.

If I need one does anyone have one? Many thanks