The Traxxas 6750 Half Shaft External Splined is a durable, steel-spline constant-velocity half shaft designed to replace worn or damaged drivetrain components and keep your RC truck running strong. Built to withstand high torque and rough off-road conditions, this external-splined half shaft delivers smooth power transfer and reliable performance whether you’re racing, bashing, or cruising. It’s a direct fit on a wide range of Traxxas models — including Traxxas External Splined Half Shaft compatible vehicles such as Rustler 4X4, Slash 2WD/4X4, Stampede 4X4, Rally 4X4, and the XO-1 — making it an essential replacement part for hobbyists maintaining or upgrading their builds.