This steel front and rear universal swing shaft set fits HPI Savage 21 platforms and ships as a 1pr package with washers. Its CVD-style layout is aimed at RC drivetrain replacement and maintenance tasks.
The shaft is used to replace stock swing shafts on Savage 21 models that share the same mounting and coupling points. Provided washers assist with spacing; confirm hub and carrier interfaces match before final torqueing.
Use the factory mounting points and standard RC hex drivers for installation. Inspect mating pins, drive hexes and surrounding ball bearings for wear during replacement, and verify driveline alignment through full suspension movement to prevent binding issues.
Ideal for replacing tired swing shafts or fitting a steel CVD-style upgrade on a Savage 21; always confirm fitment before finishing installation.
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