My question would be if you upgrade the output shaft, what would be the next weak point? Like was stated prior maybe you just have too much power onboard for the setup

? Still the rig looks pretty sick to me. Nice work. Any chance you could post a few more photos for a better look at the power plant? Nice truck

.
I have one very similar, but have not really settled on the electronics just yet $$$. I am busy trying to set up my FLM Maxx with the duel Dewalt 970 motors hooked up. I am taking my time with them because I hope to avoid any failures just to get running the way that I hope.