Originally Posted by
imjonah
I am interested in moving from 1/10 TC to 1/12 th. I was wondering how reliable and low maintenance the 1/12th differential is in comparison to the typical 1:10 scale 4wd belt driven differentials are. Assuming my goal is not eeking out the last tiny increment of speed but rather maximizing my track time relative to my wrench time.
I usually rebuild it during the week before I go to the track and it's fine all day. If I'm lazy and have to run a second day on it, it's still fine. Since you are not looking for that last tiny fraction of speed, use a thrust bearing instead of the usual cone pushing on the ball bearing. And then when you do rebuild it, it is MUCH easier to do than a TC.