Tamiya DT-03 Aluminium Rear Upper Arm by GPM DT3057  [DT3057]

Aluminium rear upper arm for DT-03

This aluminium rear upper arm is an RC-scale replacement part intended for the Tamiya DT-03 chassis, supplied by GPM as model DT3057. It is presented as a single pair intended to mount at the rear upper arm position and used primarily for suspension geometry adjustments and tuning tasks.

The content focuses on compatibility and tuning role: the part offers a straightforward aluminium alternative for users working on DT-03 rear suspension setups, providing a stiffer mounting point for upper arm connections and enabling finer adjustments to rear roll and toe response during setup changes.

Use this part when your DT-03 project requires a metal rear upper arm for suspension tuning or maintenance; verify fitment against your chassis mounting points before final installation.