Arrowmax AM-931011 is a replacement hub insert crafted for use in Pancar geardiff assemblies. It installs inside the hub cavity to provide a durable wear face where the hub interfaces with the differential internals.
Installation follows the standard hub retention approach used by Pancar geardiff kits; the insert is placed into the hub recess and secured with the supplied retaining parts. Confirm compatibility with your exact geardiff components and assemble in the recommended sequence.
As part of tuning and upkeep the insert helps keep contact geometry steady within the geardiff, supporting predictable differential response during setup and on-track adjustments. It is offered as a serviceable spare for 1/10 and 1/12 scale units.
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