Tamiya TT-01d Alloy Rear Upper Arm by GPM TT057D  [TT057D]

Alloy rear upper arm for TT-01d

This is an RC-scale rear upper arm intended for use with the Tamiya TT-01d chassis, supplied as an aftermarket part by GPM (TT057D). The component is described as an alloy rear upper arm and is intended to serve the role of a replacement or upgrade arm in the rear suspension assembly.

The arm is positioned at the rear upper link location and functions as part of the suspension geometry that controls camber and roll-center behavior. When fitting, verify alignment with existing mounting points and confirm ball-end or pivot interfaces match the TT-01d layout before final installation. Use the vehicle's standard mounting hardware unless alternative hardware is specified by your build notes.

For tuning, this alloy rear upper arm is intended to provide a stable reference when changing shock settings, roll stiffness, or toe and camber adjustments. Keep setup notes when swapping arms so you can compare handling changes, and inspect attachment points regularly for secure fastening during routine maintenance.