The GPM TRX4037FX front main shaft swaps in a steel joint and aluminium body to strengthen power transfer from motor to axles on the Traxxas TRX4. It helps preserve stable drivetrain behaviour during technical runs.
The CVD head promotes smooth rotation to lower wear and help longevity. The crosshead design increases allowable rotation angle and is orientated toward the front gearbox to enhance driveline efficiency. Placing the CVD head closer to the middle gearbox reduces friction where clearances are tight.
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