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

Precision outer diff shaft for Mini-Z MR-015

This component is engineered to fit the Kyosho Mini-Z MR-015 platform and replaces the outer tuned ball differential shaft named in the product title. It is intended for hobbyists who rebuild MR-015 differentials and need a direct-fit outer shaft to restore designed clearance and response.

Functionally, the outer shaft locates within the ball-type differential assembly and influences torque split characteristics and transitional slip behaviour between outputs. Accurate reinstallation is important since small tolerance shifts can change traction transfer and handling balance.

Service procedure includes partial disassembly of the MR-015 differential housing, inspection of ball bearings and races, cleaning of mating surfaces, and reassembly to factory-like tolerances. Use of correct replacement parts maintains drivetrain smoothness and predictable diff action.