HPI Savage 21 Front/Rear Steel Wheel Shaft with Washers by GPM SSAV1139  [SSAV1139]

Front and rear wheel shaft for Savage 21

This GPM SSAV1139 shaft set is an RC-scale replacement intended for the HPI Savage 21 chassis. The set includes the front and rear wheel shafts together with the matching washers as indicated in the product name, supplied as a 1pr set for direct swap of worn or damaged shafts.

Designed as a direct-fit spare, these shafts serve the primary role of transferring wheel loads to the hubs while keeping wheel runout and play to a minimum. Use the originals as a reference during installation to maintain factory alignment and to preserve hub spacing.

Installation notes: inspect mating hubs and wheel hexes for wear before fitting, ensure washers sit flush against the hub faces, and secure fasteners to the manufacturer’s recommended tightness to avoid bearing preload or hex slippage. Check wheel rotation after installation and re-tighten if any lateral play appears.

Tuning role: replacing bent or worn wheel shafts restores consistent wheel geometry and helps maintain reliable handling under accelerating and braking loads; swapping shafts is a common maintenance step during setup and after off-road impacts.