NOTE: Comes in a pack of 6. 1/16" (1.588mm) Tungsten Carbide balls are an additional option for your diff if ceramics are eating up your trust bearing rings. These balls are not as hard as the ceramics so they could give better life depending on the materials they are combined with.
These 1/16" (1.588mm) Tungsten Carbide diff balls are commonly used in the Hotbodies D4, Duratrax Evader, and many others in the thrust bearing. Please check your manual for the correct size.