HPI Savage 21 Shock Shaft Upgrade SAV13170/SH by GPM  [SAV13170/SH]

Damper rod for Savage 21 rebuilds

This hardened steel shaft is offered as a replacement for Sav13170 dampers fitted to HPI Savage 21 vehicles. The item comes as 1 pr and functions as the internal rod of the damper, aimed at hobbyists carrying out regular shock service, rebuilds or part replacement.

Installation follows standard shock teardown steps: remove the damper cap, disassemble the internals, extract the old shaft and fit the new rod. Inspect seals and piston faces during assembly and confirm the shaft is free of bends to maintain consistent damping response.

When tuning or replacing worn components this shaft preserves damper travel and alignment, helping retain suspension performance after a rebuild. Fit it when a straight, undamaged shaft is required to avoid uneven damping characteristics.