I still believe the one thing Traxxas has nailed is the new shafts. They are light, hold up well, and cheap to replace when the pins finally let go (the one weak point).

I'm also interested in seeing if the new center shaft in the 4x4 slash drives any tech changes in shafts. I've always wondered why there were no hollow aluminum shafts used in RC's - they are actually quite common in full scale racing.

That's kinda what I was after JT, tube will transmit buckets of torque.. The 1:1 cars we drive could be so much more efficient if the auto mfgs would stop making everything from steel and start using more light metals and composites. There I go dreaming again.

Anyway the idea would go far for someone to make custom lengthened drives.
I think they'd give some real mileage used as centerdrives.

They would hold up a lot better on a vehicle that weighed less and used stronger A arms also...:whistle: