The aluminium rear upper arm model DT3057 is supplied as an aftermarket replacement for the Tamiya DT-03 chassis. Provided as one pair, the component is intended for rear upper arm mounting and for use during suspension geometry adjustments and setup tuning.
Designed to provide a firmer mounting point than stock plastic parts, the aluminium arm supports consistent rear roll and toe response when making incremental setup changes. Confirm chassis mount alignment and fastener specifications before final assembly.
Recommended for DT-03 builds where a metal rear upper arm is required for tuning or maintenance; check fitment and clearances during installation.