Originally Posted by
C.Harper
Part #?
http://avidrc.com/product/5/accessor...cessories.html
That's the website, they charge $10 for it and it's for the B4/4.1/4.2 but if I remember correctly the thrust assembly for the TC4 and the B4 were identical, so it should fit the TC4. I have one, I just haven't installed it because my diff is pretty good and I didn't want to mess with it.
On the other hand, if you can find a 2.5mm x 6mm x 3mm thrust bearing for a dollar, give it a shot.