Treal Hobby Aluminum Rear Chassis Brace & Towers Set for Traxxas Sledge (Black)** GW Direct This is a replacement Traxxas offers incredibly long spin This is a replacement Traxxas Long Truck Half Shaft Pro Pack The model is driven by a powerful spring motor and gear set that transmits power through the crankshaft and belt drive (a rubber band passing through a tensioner with roller) to the rear wheels The model specific machined components add rigidity and support around the rear suspension and drivetrain mounting area Reinforce the rear chassis structure of your Traxxas Sledge with this Treal Hobby CNC aluminum rear chassis brace and tower set in black