The HUDY 106061 pack includes four replacement drive shaft pins measuring 2.5x11 and produced to an extra hard grade to improve resistance to wear in RC drivetrains. These pins act as direct retention items within axle and driveshaft junctions that take a 2.5mm diameter pin, helping to limit play between mating pieces and maintain intended mechanical relationships.
To replace a pin, withdraw the damaged part from the driveshaft or coupling then press the new 2.5x11 pin into the matching hole until it is seated. Confirm alignment, then retighten any related fixings. Extra hard pins are tougher against deformation but still demand correct seating to avoid imposing stress on nearby components.
Used during setup and maintenance, fresh pins can stabilise gear engagement and help retain consistent wheel timing, contributing to more repeatable handling across testing and events.
Store this set with your repair spares so you can quickly restore drivetrain geometry and keep setup changes to a minimum during track work.
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