Tamiya 1/14 Truck Radius Arm Upgrade Alloy TRU058 by GPM  [TRU058]

Precision alloy radius arms for Tamiya 1/14 trucks

This alloy radius arm set is tailored for 1/14 scale Tamiya tractor trucks, swapping out the stock plastic arms for alloy units that provide a firmer rear linkage mount and lower flex during operation.

The set comes as 2pcs and includes collars, lock nuts and mounting screws as shown in the product name. These parts are designed to match the truck's existing mounting points so you can perform a direct aftermarket replacement that focuses on chassis rigidity and reliable alignment.

Fitment guidance: examine bearings and pivot points for wear before fitting, remove original arms carefully, carry over any spacers that are required, install the alloy arms using the supplied collars and lock nuts, and tighten hardware to a sensible torque to avoid thread damage. Confirm alignment on the bench and recheck after a short run.

In tuning terms, the radius arms reduce link flex and help retain rear axle geometry under acceleration and braking, producing a firmer suspension feel and more consistent gear engagement when loaded.

Select these alloy radius arms for a solid, direct-fit upgrade that tightens rear-end behaviour and supports consistent setup during running and tuning.