The Tamiya 54311 RC TA06 Cross Shaft for Gear Differential Unit OP-1311 replaces the stock resin cross shafts with metal alternatives to reduce flex and improve the overall running quality of the differential gear unit.
Metal cross shafts provide stronger support for the differential internals, helping to keep gear alignment consistent during high load situations. That stability can improve durability and deliver a more predictable drive feel when pushing the car hard.
Designed for the TA06 family, including TA06 PRO variants, these cross shafts are a direct fit. Swap out the resin shafts for the metal parts, then check that the differential rotates freely and that gear mesh is correct before finishing the rebuild.
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