Originally Posted by trf_racer
You don't need to break in the diff. They are good to go.
For the belts, if you see it skipping or wobbling, maybe it's time to tighten it.
K, i am asking these questions in here cause i thought i would get an educated answere, instead im getting common sense answeres,well common sense besides the part about not having to break in a diff. Look i know what im doing even tho i am new with the Tamiya car, but i was just asking if anyone knew anything "trick" or special to do so that the diff/belts last a lil longer.