The GPM XRT190 is a robust upgrade using 4140 medium carbon steel to improve resistance to bending and wear in Traxxas XRT 8S drivetrains. The shaft diameter increase from 5.5mm to 7mm raises stiffness and reduces the likelihood of deformation during high torque events. The 7075 alloy hex adapter paired with a stainless steel pin provides a dependable mechanical interface that helps maintain alignment and driveline integrity under repeated loads.
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