Tamiya Wild Willy 2 WR-02 Rear Knuckle Arm Aluminium WW2022 by GPM  [WW2022]

Rear aluminium knuckle arm option

This aluminium rear knuckle arm is supplied as 1 pr and serves as an aftermarket replacement for the TAMIYA Wild Willy 2 WR-02 chassis. It swaps the factory plastic rear knuckles for a metal unit while preserving the original mounting geometry for direct replacement.

Installation is performed using the vehicle's standard rear hub and suspension procedure; remove the stock knuckles, mount bearings and hubs as they sit on the chassis, then secure this aluminium piece with the original fasteners. After fitting, inspect movement through the full suspension travel to ensure there is no binding and that alignment is correct.

As a setup choice the aluminium arm is a stiffer option compared with typical plastic components, affecting rear steering feel and suspension response. Fit it if you need a tougher spare or when testing setup changes that reduce rear knuckle flex.

A straightforward aluminium upgrade that matches the Wild Willy 2 WR-02 layout and is useful for hobbyists replacing worn plastic knuckles or evaluating rear stiffness changes.