Tamiya TB-04 Aluminium Rear Knuckle TB4022 by GPM  [TB4022]

Replacement aluminium rear knuckle for TB-04

This aluminium rear knuckle arm is supplied as a single pair and serves as a direct replacement for the plastic knuckle on Tamiya TB04 touring cars where geometry is compatible.

Why aluminium: the metal construction delivers greater rigidity and wear resistance than standard plastic parts, helping to preserve alignment under repeated cornering loads and setup changes for more repeatable handling.

Installation tips: confirm this knuckle matches your TB-04 variant before purchase. Installation generally requires hub removal, swapping bearings if required, and refitting with the original screws. Ensure correct torque and check bearing play after installation.

Tuning advice: fitting aluminium knuckles can slightly sharpen steering response and affect rear traction. Make single-variable adjustments to toe or camber and monitor hex screw torque to avoid binding at the bearing interface.