Traxxas TRX-4 Front Knuckle Arms Aluminum Upgrade - JR-TRX412-BK by Jazrider  [JR-TRX412-BK]

Machined aluminum front knuckles for TRX-4

This upgrade replaces the stock front knuckle arms on Traxxas TRX-4 rigs with JR-TRX412-BK machined aluminum components designed to resist wear and hold steering geometry under heavy trail use.

Parts are shaped to match TRX-4 mounting points for a direct-replacement fit, so no chassis cutting is normally required beyond typical knuckle removal and refit. The alloy body prioritizes dimensional stability and repeated-use durability versus standard molded parts.

When setting up, the knuckle arms affect steering feel and return. After installation, check toe and draglink alignment and cycle the suspension through full travel to ensure there is no binding. The components are made to interface with TRX-4 steering linkages and wheel hubs on compatible vehicles.

Choose this aluminum knuckle arm set when you want a durable, dimensionally stable front steering replacement for TRX-4 crawling where consistent steering precision and long-term wear resistance matter.