HPI Savage 21 Alloy Lower Spring Retainer SAV13170/LSR by GPM  [SAV13170/LSR]

Alloy lower spring retainer for Savage 21 shocks

This aftermarket lower spring retainer is a metal replacement intended for use on HPI Savage 21 scale RC trucks, supplied as a single pair. It secures the lower end of the suspension spring on the shock assembly to keep spring position consistent during setup and while running.

Made as an aluminum alloy part, the retainer offers a durable alternative to stock plastic cups and helps when setting spring preload or swapping spring rates frequently. Fitment targets Savage 21 chassis that use the standard lower spring retainer shape, so check compatibility with your shock housings before fitting.

Installation notes: orient the retainers with the spring seat face inward toward the shock, fasten existing hardware to the shock manufacturers torque or fit guidance, and verify full spring travel after assembly. No additional hardware or tools are included with the part unless the seller specifies them.