I'm running the 3R center diff with whatever spur that is. I believe I had the 31t blue delrin gear and a 16t plastic pinion. I was also running the Kyosho brand 9.6NiMH.

I had an issue with Robinson Racing mini metal pinions. I was eating up my blue delrin gears like crazy. My buddy thinks it's because my plastic motor mount was flexing under the torque of the Aon.

Matthew