HPI Savage 21 Precision Steel Main Shaft SSAV1037L by GPM  [SSAV1037L]

Technical Overview of the Steel Main Shaft

This single-piece steel main shaft is manufactured for the HPI Savage 21 and specified for exclusive compatibility with SAV1014L and SAV1014vl chassis codes. The component replaces a worn or bent main shaft within the model-scale transmission and is intended for use in standard drivetrain assemblies.

For fitment, verify the chassis index and inspect all bearing seats and retaining hardware before installation. Ensure the shaft seats without axial play, confirm spur and pinion engagement is free from interference, and maintain gearbox alignment to prevent binding that could lead to premature wear.

Assembly guidance: use original retaining clips when their condition allows, check bearing tolerance and replace as needed, and use minimal, appropriate lubricant on contact surfaces consistent with workshop practice. This product is supplied as a single piece for the stated Savage 21 variants.