The JR-TRX412-BK front knuckle arm kit upgrades TRX-4 steering components to machined aluminum to improve wear resistance and better preserve steering geometry during heavy trail and crawler use.
These knuckles are made to align with TRX-4 mounting points for a straightforward swap, avoiding the need for chassis modification in most cases. The aluminium construction helps reduce dimensional change compared with molded knuckles.
After fitting, validate toe and draglink alignment and cycle the suspension to confirm free movement. The parts are intended to integrate with standard TRX-4 steering linkages and hub interfaces on compatible vehicles.
This aluminum front knuckle arm set is suited to users seeking a durable, dimensionally stable replacement for TRX-4 front steering parts, particularly for scale trail and technical crawling.