Mini-Z MR-015 Outer Ball Differential Shaft Upgrade KZ-07B by 3Racing  [KZ-07B]

Outer differential shaft for Mini-Z MR-015

This replacement part fits the Kyosho Mini-Z MR-015 platform and provides the outer tuned ball differential shaft referenced in the product name. It is intended as an RC replacement to restore or refine outer differential action in MR-015 assemblies during maintenance or rebuilds.

The outer shaft sits within the ball-type diff and affects torque transfer and slip behaviour between outputs. In practice, swapping this shaft will influence traction transitions and the overall balance of the drivetrain, so check diff behaviour after refit and adjust internals if needed.

To install, partially disassemble the MR-015 differential housing to access the outer shaft and ball elements, clean mating surfaces thoroughly, and reassemble to the correct tolerances. Correct replacement components keep the drivetrain running smoothly.