The HPI-86277 cup joint is offered as a direct replacement for HPI Savage X drivetrains, presented in a silver finish and sized 8x14x19mm. Confirm the dimension before replacing to ensure the part matches your existing cup joints and yoke clearances.
How to install: remove the driveshaft, change one side at a time to retain alignment, seat the new cup joint correctly in the yoke, then reassemble with original fixings following factory torque guidance. Standard hobby tools are adequate for the swap.
Inspection advice: monitor these joints for scoring and increased play, keep the mating areas free from grit, lubricate sparingly where required, and swap them out in matched pairs when wear becomes evident to preserve driveline geometry.
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