TRAXXAS TRX4 Front Knuckle Arm Set 14pcs 6061 T6 TRX4021B by GPM  [TRX4021B]

Solid aluminium knuckle arms for predictable crawling

This 14pcs aluminium front knuckle arm set is designed for TRAXXAS TRX4 Trail Crawler scale applications and helps support and stabilise steering linkages plus the front knuckle gears to keep gear runs smooth under crawl conditions.

Each component is CNC-machined from aluminium 6061 T6 and given a streamlined finish to preserve rigid geometry when loaded, while providing the tactile feel of metal hardware. The kit is intended as an aftermarket replacement to cut down play at the knuckle pivots and to aid consistent gear engagement at low speeds.

The hardware noted by the product source includes stainless steel screws in multiple sizes for assembly; verify the included quantities before installation and use appropriate threadlocking where needed.

Install these knuckles to firm up front-end geometry and reduce slop at the pivots; they function as a tuning component to stabilise front gear engagement and make slow technical crawling more predictable.