This is a single replacement drive gear intended for HPI Savage RC models, supplied as 1 pcs. Machined from Delrin, the gear is a direct spare for drivetrain maintenance and tuning where a durable, low-friction plastic component is preferred. The fluorescent surface improves visual inspection during setup and wear checks.
Installation: remove the spur/pinion mesh as required and swap the worn drive gear for this unit, check mesh and endplay, and verify smooth engagement across the full suspension travel range. Use the original retaining hardware and confirm the gear seats correctly on the diff output or gearbox shaft before running.
Tuning role: this Delrin gear serves as a lightweight, quieter option compared with metal gears and is useful for testing mesh settings, reducing drivetrain noise, and protecting mating metal parts from rapid wear. Replace when tooth faces show rounding, cracking, or significant material loss.
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