This is an RC differential spare intended for use with the Tamiya M07 chassis and identified by the 3Racing part number M07-01D. It provides a straightforward direct-fit option when the original unit becomes worn or when a swap is needed between heats.
Role in setup and tuning: installing a new diff evens out drivetrain behaviour, helping you separate suspension and tyre grip changes from variable diff wear so setup choices are clearer.
Installation guidance: the spare replaces the internal differential assembly inside the M07 housing. Inspect associated走珠軸承 and gear seating for wear, confirm gear mesh clearance and secure fasteners to the chassis maker's guidance. Do not over-tighten and re-check that the diff turns smoothly before running.
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