These GPM turnbuckles are CNC style aluminium components for the Traxxas TRX4 Trail Crawler, produced from 6061 T6 to provide a durable link connection under chassis loads. The design permits accurate tie rod adjustments to modify wheel track and steering geometry. Adjustment capability is defined as a 1.2mm reduction or a 3mm extension relative to the original rod length, allowing predictable tuning without altering core geometry.