Differential service

Start with the correct reference

The assembly specifies separate ball-diff and joint greases and documents tightening checks. Optional tungsten carbide balls are not the supplied balls; do not substitute gear-differential oil.

• Ball differential assembly and adjustment, PDF p. 12 (opens in a new tab)

  Assembly drawing · 30623 exact manufacturer-linked 30623 MM02

  An assembly drawing shows the components; it does not provide a complete service sequence.

Parts, tools and consumables

Part links open an exact-model OEM listing. Quantities, reused hardware and condition-dependent replacements may need checking in the manual. A listed part is not an instruction to replace it.

Setup specifications

Differentials

Ball front and rearStock

Sources

• Source 1: rc.kyosho.com (opens in a new tab)

Keep the axle positions and original units shown. Values describe the cited configuration. Replacement-derived and community figures keep their stated basis.