Originally Posted by
malkiy
The pro4 had notoriously easy to strip gears. Didn't need a hard crash to strip them. I wouldn't use the pro4 as an example of shaft drivetrain durability. Take a look a the awesomatix gears, I doubt you could strip the ring and pinion on that car.
We used to run these cars on foam tires on carpet, never an issue with the gears