Left and right aluminum stub axle carriers boost the appearance and strength of your 4-Tec®. The billet 6061-T6 aluminum construction adds strength and precision with a brilliantly anodized finish. Genuine Traxxas accessories are made by Traxxas, for Traxxas, to guarantee a perfect factory fit every time. Includes 3x12 mm screws (2) and 2.5x6 mm screws (2).