Why does my MN Model MN128 RC Car make drivetrain noise while driving?

If your MN Model MN128 RC Car has drivetrain noise, rough rotation, or unstable power delivery, the Driveshaft Dog Cup may be worn, have excessive clearance, or have a loose connection. Inspect the MN Model MN128 Parts Driveshaft Dog Cup, clean the area, and replace it if necessary.