built it to last so you dont have to worry but it is only money...
I have can say throught the years i have replace part as things broke on my sami with the stock axle and i upgraded each time it broke..After fixing it time and time again it got to the point where the axles were maxed out and it still broke.. So i upgrade to stronger axles (Yota's) and decided that i was tired of replacing things so I max out the yota's now before putting it under the sami.
I have not broke since..
I am surely not one to be easy on my stuff. i built it for my driving style..Beat it hard till i make it.. i want it not to brake so i have make it stronger than the skinny pedal..
i mean if i was braking with 60 all the time and kept upgrading and still braking then rockwell it would be.. yes there is a line as stated about where you have to be easy on it with motor,weight, tire and axle setup.
When you find it keep it and wheel it...
and may
till it brakes...