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

Alloy rear upper arm for TT-01d chassis

This alloy rear upper arm is supplied as an aftermarket replacement for the Tamiya TT-01d chassis (TT057D). The component is intended to act as the rear upper link, providing a metal alternative to the stock arm to improve repeatable geometry for tuning work.

Installed at the rear upper mount, the arm helps define camber and roll-center positions in the suspension. Confirm that mounting hole centres and pivot interfaces match your TT-01d variant before final assembly. Fit using the original mounting hardware unless a documented upgrade requires different fasteners.

Use this alloy arm as a stable benchmark when changing shock valving, roll stiffness or toe/camber settings. Keep setup documentation when swapping components and inspect fastenings routinely to maintain secure attachment during use.