TRAXXAS TRX4 Trail Crawler Aluminum Front Knuckle Arms 14pcs by GPM TRX4021B  [TRX4021B]

Aluminum front knuckles for precise crawling

This 14pcs set of aluminum front knuckle arms is designed for TRAXXAS TRX4 Trail Crawler scale use and serves to support and stabilise the steering linkages and internal front knuckle gears to keep gear runs consistent.

Components are machined from aluminum 6061 T6 and finished with 3D CNC streamlining to maintain rigid geometry under load while giving a solid metallic feel. The kit is intended as an aftermarket replacement to reduce play at the knuckle pivot points and to help preserve smooth gear engagement during low-speed technical crawling.

Included fasteners listed with the product source are stainless steel screws in multiple sizes to fasten the assemblies; verify counts before installation and use appropriate thread engagement and lock methods for your chassis.

Use these knuckle arms when you need firmer steering geometry and reduced slop at the front knuckles; they serve as a tuning part to stabilise gear engagement and improve predictability in slow technical crawling sections.