Originally Posted by jgraham37128
I replaced my ball diff with ceramic balls and ceramic thrust bearing. Now it keeps loosening during a five minute run.
Does anyone know why? All the thrust washers and cone washers are in the right spot. The plastic piece is in the male side of the diff housing too and isn't stripped. I pulled it out and tested it with the screw and it won't thread all the way thru. I suppose it's tapered but the screw fits nice and tight.
I came to the realisation from building several 1/12 diffs, that ceramic diff balls are as much as a sin as a saint.
The reason for this is that they are incredibly hard wearing because they are just so damn hard, and they are smoother and more slippery than other diff balls.
I personally prefer tungsten carbide diff balls - harder, more consistent, and rounder than steel ones, not so hard as ceramin - they make the best diffs!