I already burned up the bearings in my clutch bell. I would suggest a set of good sealed bearings. I also broke the plastic mount for the rear diff brace, and am getting an aluminum one to replace it.

My tire foam is already getting kinda weak, especially in the rear.

My shocks are really soft too, i want to put some heavier weight oil in them as well.

I also stripped the servo horn on the steering servo. I figured im going to need to get a better steering servo anyway so i just superglued the damn thing back on for now. Fixed it though, and im going to get an aluminum horn when i get an upgraded servo.