Alright, I guess I was wrong then. I just looked on the parts list and I've been calling it the wrong name. The conical gears are some of the best I've seen. The parts list calls the ones I'm concerned about "diff gears". 4 silver gears in each diff (I normally call them planetary gears) Have you heard of any problems out of these? They're the ones I was talking about that look like they aren't tempered.

Where do you guys find replacement parts like a-arms and common stuff like that? I checked Tower and Horizon, but didn't see any. I haven't done any real digging into it, just wondering. I like to have spares of some parts just in case.

Another question. I've heard there are some problems with diffs leaking a little. Is this true? If so what's the best fix for it. I heard the Pro-spec changed the design and got rid of this problem.

If the diffs are fine that's good.

I plan to go with a Fioroni Chassis and the Kingheadz upgrade kit.

What do you think of these parts? Is there anything else you would change or recommend?