HPI Savage 21 Precision Steel Front/Rear Universal Swing Shaft SSAV12100C by GPM  [SSAV12100C]

HPI Savage 21 Steel Front/Rear Universal Swing Shaft (CVD Design) With Washers - 1pr set - GPM SSAV12100C
Price:
USD$19.60
Brand:
GPM
Model:
SSAV12100C
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Technical overview of the universal swing shaft

This precision-engineered steel front and rear universal swing shaft is manufactured to fit HPI Savage 21 platforms and is supplied as a 1pr set with washers for correct spacing. The CVD-style geometry is specified for RC drivetrain applications requiring robust steel components.

Functionally, the shaft is intended as an aftermarket replacement where stock mounting and coupling geometry are preserved. The supplied washers allow adjustment of end play and engagement; check carrier and hub interfaces to validate fit before final installation.

For installation use original mounting points and standard RC tools such as hex drivers. Inspect mating pins, drive hexes and adjacent ball bearings during replacement and confirm driveline alignment through full suspension travel to avoid binding and ensure long term reliability.

Specifications

  • Item HPI Savage 21 Steel Front/Rear Universal Swing Shaft with washers, 1pr set
  • Material Steel
  • Model Number SSAV12100C
  • Compatibility HPI Savage 21

Specified for technicians replacing worn swing shafts or upgrading to a steel CVD-style shaft in Savage 21 drivetrains; verify geometry and clearances before final assembly.

What critical checks should be done before final torque?

Confirm correct washer stack, verify hub-to-shaft engagement at full compression and droop, and ensure there is no lateral play in adjacent bearings.

How should I assess compatibility with modified drivetrains?

Measure coupling geometry and compare to the stock shaft dimensions; any deviation in offset or pin location can require custom spacers or alternative components.

Are there service recommendations to extend life?

Regularly inspect drive hexes, pins and bearings, maintain clean lubrication on bearing races, and recheck alignment after the first run-in period.