I understand it's not good to bring up old threads, but I couldn't find any where else that has a thread for Volcano EPX. [&o]

I had installed the brushless motor & ESC, running on 7 Cells GP3900.
It's great to have the truck wheelie on dry asphalt from a stand still with 17t pinion

But after several whelies, the center aluminum long drive shaft broke at the joint between ball head and rod. [:@]
Exessive wear also was noticed where the pin was holding to the rod.
I installed a new shaft (stock).

Geared it up to 19t pinion. Motor got hotter (still can be touched).
After 15 min run (not rough bash), I found the same wear around pin and alum. rod.

fact is the alum shaft can't take the torque.

I need your help:
1. Is there aftermarket center shaft that fits? where to get it?
2. what other tires/wheels can I install on the volcano EPX?
3. is the hex hub considered a 14mm size? (BTW, how to measure hex hub side?)
4. is there any aftermarket 64t spur that fits?

Other problems i had:
1. stock servo will twitch under heavy acceleration.
2. stock hex hub was 'ground hollow' by wheel pin.
3. stock spur showing signs of exessive wear around pin area.