Red Heavy Duty Front Suspensio Arms w/ Lock Nut Hinge PinsCNC Machined from high grade aluminum material, these Front A arms will bullet proof your Traxxas Stampede, Rustler, or Slash. For smooth suspension operation, the hinge pin holes are fitted with machined delrin inserts. A arms come with heat treated carbon steel polished lock nut style hinge pins. Solid in design and construction. (1 pair)