The TRAXXAS MINI XRT VXL 3S Rear Upper Suspension Arms by GPM XRTM057 are CNC focused upgrades that bring stronger structural support to the rear hub stub axle carriers. Constructed from 7075 aluminum, these arms provide a high strength to weight ratio and resist deformation under load.
Designed to interface with an outer arm pin of 34.2mm, the arms are secured with an M3 lock nut to ensure repeatable clamping force and minimal play. This precision fit reduces rear-end compliance and aids consistent tuning when adjusting suspension settings.