Traxxas Suspension Arms Rear Left and Right Exo-Carbon. Traxxas rear suspension arms in Exo-Carbon for the Jato Performance Accessories. Exo-Carbo parts are fuel resistant in normal use. Prolonged exposure to raw fuel may weaken or damage the finish.<br><li>Length  4.46 .<li>Width  1.64 .<li>Thickness  0.28 .