Specifically produced to strengthen the Traxxas XRT 8S shock train, the GPM XRTDP shaft core kit combines 4140 medium carbon steel with 7075 aluminium for improved toughness. The core has been thickened from 5.0mm to 7.0mm to reduce bending under heavy use and protect seal surfaces. The kit is compatible with genuine and GPM shock units to simplify upgrades and maintenance.
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