Well like I said, the truck is for stupid people like me with the 3.3 installed .
I really did write Traxxas an e-mail asking them about putting a 3.3 on, they basically told me good luck. I'm guessing someone at Traxxas already tried it?

It's really overpowered with the 3.3. The first thing that went were my plastic eared stock axles.
With just a blip of the throttle once the engine was broken in, the plastic piece that holds the universal joint to the differential shaft came apart in a couple pieces.

I upgraded to CVD's, and I think the next thing that was going to go would be the diff itself. Maybe upgrading to the aftermarket aluminum transmission case would help keeping the gears from spreading apart in the transmission while under load?

As far as driveability, it was fun, but also a challenge. I ran the closest pinion and spur gear I could, and the truck would still be pointing to the sky once the engine got into its power band. Didn't really matter what you did with the throttle. I got rid of the battery box and installed a 5 cell NiMH receiver pack on the front body mount, hoping the weight change to the front would help. Not so! So at that point I threw a set of wheelie bars on it, to at least keep it from doing a back flip (most of the time).

She has been resting ever since, but maybe soon I will fire her up and try it again. The aluminum transmission case that I just saw on ebay was news to me, so If I do get her running again, I would probably consider building a transmission with one of those.