The HPI-86277 cup joint set is intended as an RC-scale replacement for HPI Savage X drivetrains and is supplied in a silver finish as two components. Verify the 8x14x19mm sizing to ensure proper fitment and to avoid interference with your driveshaft assemblies.
Installation overview: replace one side at a time, inspect drivepins and surrounding parts for wear while the driveshaft is removed, seat the new joint correctly in the yoke, and reassemble using the original hardware with recommended torque. Common RC hand tools are sufficient for the task.
Maintenance summary: these cup joints should be checked periodically for play or scoring, kept free of debris, lightly lubricated on sliding interfaces as appropriate, and replaced in matched pairs when wear is evident to maintain driveline performance.