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What size diff balls does the XX use?? Are there replacement carbide balls out there somewhere that I can use for it??

What are my option when buying diff rings?? Do I have to use XX diff rings or can I use a different type of rings.

I want to run my XX with a brushless system but I want to rebuild the tranny first, it's making some kind of weird noise, so I guess it's time to rebuild.

Their just 3/32 just like all losi's the Diff rings are still available but turn them over and use both sides before you toss them.