Originally Posted by AdrianM
The ceramic balls seem to do ok for the stock and 19T rubber guys but they seam to kill the diff rings in mod rubber or foam and 19T foam.
If you have a lot of power or traction ceramics seem to slip easier even with a tight diff. Tungsten balls don't slip even with a more loosely set diff.
Well, as stated Ceramic balls slip faster then steel or carbide ones.
One of the tricks is the one described in the almighty Marc payne 1/12 notes:
I do this in both 1/12th and my Yokomo BD (plastic diff outputs) and former RDX...
Trick is to make a groove in the diff plates so the ceramic balls have more surface to tough against the plate.
Read it, it sounds awfull while doing it but it works: in short:
Build your diff but put some rubbing compound (I use the one from Motip) on the balls instead of grease. Dont tighten dont to tightly, you must really hear the compound scratching in the plates. Play with your diff for a while and notice the groove you're pulling in the plates... When you satisfied, completely clean you diff so every last trace of the compound is gone and put it back together again.
Diff should work very smooth now and the balls wont slip that easily.
You should really try it ;-) (and btw, no, the diff balls wont be hurt cause ceramic is extremely hard)